15 Simple Leftover Rice Casserole Recipes That Reduce Food Waste

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15 Simple Leftover Rice Casserole Recipes That Reduce Food Waste

Leftover rice is easy to end up with after a few meals. These casseroles give you simple ways to use it up. Each recipe keeps things basic with ingredients most kitchens already have. They turn scraps into complete dinners without extra shopping. You will find 15 straightforward options that fit weeknight cooking.

Tips for Making the Most of Leftover Rice

These ideas will help you turn leftover rice into simple casseroles with less waste.

Check Rice Freshness First

Smell and look at your leftover rice before use. Discard any that smells off or has dried hard edges.

Mix in Other Fridge Items

Add cooked vegetables, meats, or sauces you already have on hand. This builds flavor without extra shopping.

Add Liquid to Prevent Dryness

Stir in a bit of broth, milk, or sauce when assembling. Leftover rice absorbs moisture quickly during baking.

Use a Shallow Baking Dish

Spread the mixture in a wide dish for even heating. This helps the top crisp slightly without overcooking the center.

Cheesy Chicken Broccoli Rice Casserole

This casserole turns leftover rice into a hearty weeknight meal by combining it with chicken and broccoli under a layer of melted cheese. It has a creamy interior with tender bites of broccoli and a lightly browned top that adds a bit of texture.

It works well when you have cooked rice and chicken already on hand and need a simple way to bring them together without extra shopping. The flavors stay mild and comforting, making it easy to serve to a family.

Cheesy Chicken Broccoli Rice Casserole

Serves 4 people.

Ingredients

  • 2 cups leftover cooked rice
  • 2 cups cooked chicken, shredded
  • 2 cups broccoli florets, chopped
  • 1 1/2 cups shredded cheddar cheese, divided
  • 1/2 cup milk
  • 1 teaspoon onion powder
  • 1/2 teaspoon garlic powder
  • Salt and pepper to taste

Instructions

  1. Preheat the oven to 350°F and lightly grease a 9×13 baking dish.
  2. In a large mixing bowl, stir together the leftover rice, shredded chicken, chopped broccoli, 1 cup of the cheddar cheese, milk, onion powder, garlic powder, salt, and pepper until evenly combined.
  3. Transfer the mixture into the prepared baking dish and spread it into an even layer.
  4. Sprinkle the remaining 1/2 cup of cheddar cheese over the top.
  5. Bake for 25 to 30 minutes until the cheese is melted and the edges start to bubble.

Extra Tips

Steam the broccoli briefly before mixing if you prefer it softer, or use frozen florets straight from the bag for convenience. Leftovers reheat well in the microwave with a splash of milk to loosen the sauce, and the dish can be assembled a day ahead and baked when ready to serve.Course: Main Course Cuisine: American Equipment: Mixing Bowl, 9×13 Baking Dish

Spicy Mexican Beef and Corn Rice Casserole

This casserole turns leftover rice into a filling meal with ground beef, sweet corn, and bold spices. It works well on busy weeknights when you want something hearty without extra shopping. The result is a zesty dish with tender rice, savory beef, and a lightly crisp cheese topping.

Spicy Mexican Beef and Corn Rice Casserole

Serves 4 people.

Ingredients

  • 3 cups leftover cooked rice
  • 1 lb ground beef
  • 1 cup corn kernels
  • 1 medium onion, diced
  • 2 cloves garlic, minced
  • 1 tablespoon chili powder
  • 1 teaspoon ground cumin
  • 1/2 teaspoon cayenne pepper
  • 1 can (14.5 oz) diced tomatoes with green chilies, drained
  • 1 cup shredded cheddar cheese
  • 2 tablespoons olive oil
  • Salt and black pepper to taste

Instructions

  1. Preheat the oven to 375°F and lightly grease a 9×9 inch baking dish.
  2. Heat olive oil in a large skillet over medium heat. Add the diced onion and cook for 3 minutes until it softens.
  3. Add the ground beef to the skillet. Cook until browned, breaking it up with a spoon, about 5 to 6 minutes. Drain excess fat if needed.
  4. Stir in the minced garlic, chili powder, cumin, cayenne pepper, salt, and black pepper. Cook for 1 minute until fragrant.
  5. Add the corn kernels and drained diced tomatoes with green chilies. Stir to combine and heat through for 2 minutes.
  6. Mix in the leftover rice until everything is evenly coated and warmed.
  7. Transfer the mixture to the prepared baking dish and spread it out evenly. Sprinkle the shredded cheddar cheese over the top.
  8. Bake for 15 to 20 minutes until the cheese is melted and bubbly. Let it rest for 5 minutes before serving.

Extra Tips

Day-old rice works best here because it stays firmer during mixing and baking. If the mixture seems dry after adding the rice, stir in a splash of water or broth before transferring to the dish. Leftovers reheat well in the microwave with a damp paper towel over the top to keep the rice moist.Course: Main Course Cuisine: Mexican Equipment: Large skillet, 9×9 baking dish, Wooden spoon

Creamy Mushroom Spinach Rice Casserole

This creamy mushroom spinach rice casserole turns leftover rice into a satisfying main dish. Mushrooms bring an earthy note while spinach adds color and freshness. The cream and melted cheese create a rich texture that feels comforting on a weeknight.

It works well when you have cooked rice sitting in the fridge and want to avoid waste. The simple stovetop steps followed by a short bake keep the process straightforward.

Creamy Mushroom Spinach Rice Casserole

Serves 4 people.

Ingredients

  • 4 cups leftover cooked rice
  • 2 cups sliced mushrooms
  • 4 cups fresh spinach
  • 1 small onion, chopped
  • 2 garlic cloves, minced
  • 1 cup shredded mozzarella cheese
  • 1/2 cup heavy cream
  • 2 tablespoons olive oil
  • Salt and pepper to taste
  • 1/4 cup grated parmesan cheese

Instructions

  1. Preheat the oven to 375°F and lightly grease a 9×9 baking dish.
  2. Heat the olive oil in a large skillet over medium heat. Add the onion and garlic and cook for 2 minutes until softened.
  3. Add the mushrooms to the skillet and cook for 5 minutes until they release their liquid and start to brown.
  4. Stir in the spinach and cook for 2 minutes until it wilts.
  5. Add the leftover rice, heavy cream, salt, and pepper. Stir everything together until the rice is evenly coated and heated through.
  6. Transfer the mixture to the prepared baking dish and spread it out evenly.
  7. Sprinkle the mozzarella cheese over the top, then finish with the parmesan cheese.
  8. Bake for 20 minutes until the cheese is melted and lightly golden.

Extra Tips

Day-old rice works best here because it stays firmer when mixed with the cream. If the mixture looks dry after stirring in the cream, add a splash more before baking. Leftovers reheat well in the microwave with a damp paper towel on top to keep the texture creamy.

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Course: Main Course Cuisine: American Equipment: Large skillet, 9×9 baking dish, Mixing spoon

Teriyaki Salmon Vegetable Rice Casserole

This casserole turns leftover rice into a complete meal with pieces of salmon and a mix of vegetables all coated in teriyaki sauce. It works well on busy weeknights when you want to use up cooked rice and whatever vegetables are in the fridge.

The finished dish has tender salmon flakes throughout the rice, with vegetables that stay slightly crisp after baking. The teriyaki sauce gives the whole casserole a balanced sweet and savory flavor without extra steps.

Teriyaki Salmon Vegetable Rice Casserole

Serves 4 people.

Ingredients

  • 3 cups leftover cooked rice
  • 12 ounces salmon, cut into bite-sized pieces
  • 2 cups chopped mixed vegetables (broccoli, carrots, and bell peppers)
  • 1/2 cup teriyaki sauce
  • 1 small onion, diced
  • 2 cloves garlic, minced
  • 1 tablespoon vegetable oil
  • 2 green onions, sliced
  • 1 teaspoon sesame seeds

Instructions

  1. Preheat the oven to 375°F and lightly grease a 9×13 inch baking dish.
  2. Heat the vegetable oil in a large skillet over medium heat. Add the diced onion and minced garlic, then cook for 2 to 3 minutes until the onion softens.
  3. Add the chopped mixed vegetables to the skillet and cook for another 4 minutes until they begin to soften.
  4. Stir in the leftover rice and half of the teriyaki sauce, mixing until the rice is evenly coated and warmed through.
  5. Transfer the rice and vegetable mixture to the prepared baking dish. Arrange the salmon pieces evenly over the top.
  6. Drizzle the remaining teriyaki sauce over the salmon and rice. Bake for 20 to 25 minutes until the salmon is cooked through and flakes easily.
  7. Remove from the oven and sprinkle with sliced green onions and sesame seeds before serving.

Extra Tips

For the best texture, use day-old rice that has dried out slightly so it absorbs the sauce without becoming mushy. If your vegetables include broccoli, cut the florets into small pieces so they cook evenly with the carrots and peppers. Leftovers reheat well in the microwave with a splash of water to keep the rice moist, and the salmon stays flaky.Course: Main Course Cuisine: Asian Equipment: Baking dish, Large skillet, Oven

Italian Sausage Bell Pepper Rice Casserole

This casserole turns leftover rice into a filling weeknight meal with browned Italian sausage and sweet bell peppers. It works well when you have cooked rice on hand and want a simple dish that feels like comfort food without extra effort. The result is a savory bake with tender rice, juicy sausage pieces, and a light cheese topping that holds everything together.

Italian Sausage Bell Pepper Rice Casserole

Serves 4 people.

Ingredients

  • 2 cups leftover cooked rice
  • 1 pound Italian sausage, casings removed
  • 2 bell peppers, sliced
  • 1 onion, diced
  • 2 cloves garlic, minced
  • 1 (15-ounce) can marinara sauce
  • 1 cup shredded mozzarella cheese
  • 1 tablespoon olive oil
  • 1 teaspoon Italian seasoning
  • Salt and black pepper to taste
  • Fresh parsley, chopped (optional, for serving)

Instructions

  1. Preheat the oven to 375°F and lightly grease a baking dish.
  2. Heat the olive oil in a large skillet over medium heat. Add the Italian sausage and cook until browned, breaking it into small pieces as it cooks.
  3. Add the diced onion, sliced bell peppers, and minced garlic to the skillet. Cook for 5 minutes until the vegetables soften.
  4. Stir in the marinara sauce, Italian seasoning, salt, and black pepper. Let the mixture simmer for 2 minutes.
  5. Remove the skillet from heat and fold in the leftover rice until everything is evenly combined.
  6. Transfer the mixture to the prepared baking dish and spread it into an even layer. Sprinkle the shredded mozzarella cheese over the top.
  7. Bake for 20 minutes until the cheese is melted and lightly golden.
  8. Remove from the oven and let it rest for 5 minutes before serving. Garnish with chopped parsley if desired.

Extra Tips

Brown the sausage well before adding the vegetables to build deeper flavor in the finished casserole. Leftovers reheat nicely in a 350°F oven for 10 minutes to keep the cheese from turning rubbery. If the rice seems dry after mixing, add a small splash of water or extra marinara before baking.Course: Main Course Cuisine: Italian Equipment: Large skillet, Baking dish, Wooden spoon

Thai Coconut Curry Shrimp Rice Casserole

This recipe turns leftover rice into a creamy, one-pan meal with shrimp and bold Thai curry flavors. The coconut milk keeps everything moist during baking, while the curry paste adds just enough heat without overpowering the dish. It works well for weeknight dinners when you want something quick that still feels fresh.

It pairs tender shrimp with sweet bell pepper and savory onion for a balanced bite. The finished casserole has a slightly crisp top with a soft, flavorful center that reheats nicely.

Thai Coconut Curry Shrimp Rice Casserole

Serves 4 people.

Ingredients

  • 3 cups leftover cooked rice
  • 1 pound shrimp, peeled and deveined
  • 1 can (14 oz) coconut milk
  • 3 tablespoons Thai red curry paste
  • 1 red bell pepper, sliced
  • 1 small onion, diced
  • 3 cloves garlic, minced
  • 2 tablespoons soy sauce
  • 1 tablespoon vegetable oil
  • Juice of 1 lime
  • 1/4 cup chopped cilantro

Instructions

  1. Preheat the oven to 375°F and lightly grease a 9×13 baking dish.
  2. Heat the vegetable oil in a large skillet over medium heat. Add the onion, garlic, and red bell pepper. Cook for 3-4 minutes until the onion softens.
  3. Stir in the Thai red curry paste and cook for 1 minute. Pour in the coconut milk and soy sauce. Simmer for 2 minutes, then remove from heat.
  4. Add the leftover rice to the skillet and stir until the rice is evenly coated with the sauce.
  5. Transfer the rice mixture to the prepared baking dish. Arrange the shrimp on top in a single layer.
  6. Bake for 20-25 minutes until the shrimp turn pink and the edges of the rice begin to crisp.
  7. Remove from the oven. Squeeze the lime juice over the top and sprinkle with chopped cilantro before serving.

Extra Tips

Stir the rice well with the sauce before baking so the coconut milk soaks through evenly. If the curry paste you use is very spicy, start with 2 tablespoons and taste before adding more. Leftovers reheat best in a covered skillet with a splash of water to restore creaminess.Course: Main Course Cuisine: Thai Equipment: Large skillet, 9×13 baking dish, Oven

Tuna Cheddar Pea Rice Casserole

This recipe turns leftover rice into a hearty, family-friendly casserole with pantry staples. It works well on busy weeknights when you need a filling meal without extra shopping. The finished dish has a creamy base, savory tuna, sweet pops of pea, and a melted cheddar top.

Tuna Cheddar Pea Rice Casserole

Serves 4 people.

Ingredients

  • 3 cups leftover cooked rice
  • 2 (5-ounce) cans tuna, drained and flaked
  • 1 cup frozen peas
  • 1 can (10.5 oz) cream of mushroom soup
  • 1/2 cup milk
  • 2 cups shredded cheddar cheese, divided
  • 1/2 teaspoon onion powder
  • Salt and black pepper to taste

Instructions

  1. Preheat the oven to 350°F and lightly grease an 8×8 or 9×9 baking dish.
  2. In a large mixing bowl, combine the leftover rice, flaked tuna, frozen peas, cream of mushroom soup, milk, onion powder, salt, and black pepper. Stir in 1 1/2 cups of the shredded cheddar cheese until everything is evenly mixed.
  3. Spread the mixture into the prepared baking dish and smooth the top. Sprinkle the remaining 1/2 cup of cheddar cheese over the surface.
  4. Bake for 25 to 30 minutes, until the cheese is melted and the edges are lightly golden. Let the casserole rest for 5 minutes before serving.
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Extra Tips

Frozen peas go straight into the bowl without thawing, which helps keep them bright and prevents extra moisture. Leftovers store well in the fridge for up to three days and reheat nicely in the microwave with a splash of milk to loosen the texture.Course: Main Course Cuisine: American Equipment: Large mixing bowl, 8×8 or 9×9 baking dish, Oven

Breakfast Sausage Egg and Cheese Rice Casserole

This casserole turns leftover rice into a hearty breakfast that works for busy mornings or weekend brunch. The sausage adds savory flavor while the eggs and cheese create a soft, creamy texture that holds together when sliced.

It is a practical way to use up rice from last night’s dinner and feed a small group without extra shopping. The combination of breakfast staples makes it feel familiar and satisfying.

Breakfast Sausage Egg and Cheese Rice Casserole

Serves 4 people.

Ingredients

  • 3 cups leftover cooked rice
  • 1 pound breakfast sausage
  • 6 large eggs
  • 1 cup milk
  • 1 1/2 cups shredded cheddar cheese
  • 1/2 teaspoon salt
  • 1/4 teaspoon black pepper
  • 2 green onions, sliced

Instructions

  1. Preheat the oven to 375 degrees and lightly grease a baking dish.
  2. Cook the breakfast sausage in a skillet over medium heat until browned and fully cooked, breaking it into small pieces as it cooks. Drain any excess fat.
  3. In a large bowl, whisk together the eggs, milk, salt, and black pepper until smooth.
  4. Stir the leftover rice and cooked sausage into the egg mixture until evenly combined.
  5. Pour the mixture into the prepared baking dish and spread it out evenly.
  6. Sprinkle the shredded cheddar cheese over the top.
  7. Bake for 25 to 30 minutes until the center is set and the cheese is melted and lightly golden.
  8. Remove from the oven and let it rest for 5 minutes before slicing. Top with sliced green onions when serving.

Extra Tips

Use cold leftover rice straight from the fridge because it mixes more evenly and keeps the casserole from turning mushy. Leftovers reheat well in the microwave with a damp paper towel over the top to keep the eggs from drying out. If you want a milder flavor, swap half the cheddar for mozzarella.Course: Breakfast Cuisine: American Equipment: Large Skillet, Mixing Bowl, Baking Dish

Buffalo Chicken Ranch Rice Casserole

This casserole turns leftover rice into a hearty meal with bold buffalo flavor and creamy ranch notes. It works well for busy weeknights or game day leftovers when you want something simple yet satisfying. The dish bakes up with a cheesy top and tender rice base that holds the spicy chicken together.

Buffalo Chicken Ranch Rice Casserole

Serves 4 people.

Ingredients

  • 3 cups leftover cooked rice
  • 2 cups shredded cooked chicken
  • 1/2 cup buffalo sauce
  • 1/4 cup ranch dressing
  • 1 1/2 cups shredded cheddar cheese, divided
  • 1/4 cup chopped green onions

Instructions

  1. Preheat the oven to 375 degrees and lightly grease a baking dish.
  2. In a large bowl, combine the leftover rice, shredded chicken, buffalo sauce, and ranch dressing until evenly mixed.
  3. Stir in 1 cup of the shredded cheddar cheese and the chopped green onions.
  4. Spread the mixture into the prepared baking dish and sprinkle the remaining 1/2 cup of cheese over the top.
  5. Bake for 20 to 25 minutes until the cheese is melted and the edges are lightly golden.

Extra Tips

For extra crunch, add a handful of crushed tortilla chips on top right before serving. Leftovers reheat best in a 350-degree oven to keep the cheese from getting rubbery. If the mixture seems dry before baking, stir in a splash of milk to loosen it up.Course: Main Course Cuisine: American Equipment: Baking dish, Large mixing bowl, Oven

Greek Spinach Feta Lemon Rice Casserole

This casserole turns leftover rice into a bright, satisfying meal with minimal effort. It works well on busy weeknights when you want something fresh that still feels comforting. The flavors combine salty feta, earthy spinach, and sharp lemon, while the rice bakes into a lightly crisp top with a tender center.

Greek Spinach Feta Lemon Rice Casserole

Serves 4 people.

Ingredients

  • 3 cups leftover cooked rice
  • 4 cups fresh spinach, roughly chopped
  • 8 ounces feta cheese, crumbled
  • Juice and zest of 1 lemon
  • 1 small onion, finely chopped
  • 2 garlic cloves, minced
  • 2 tablespoons olive oil
  • 1 teaspoon dried oregano
  • 1/2 teaspoon salt
  • 1/4 teaspoon black pepper

Instructions

  1. Preheat the oven to 375 degrees and lightly grease a baking dish.
  2. Heat the olive oil in a skillet over medium heat. Add the onion and cook until soft, about 4 minutes.
  3. Stir in the garlic and cook for 1 minute more.
  4. Add the spinach and cook until just wilted, about 2 minutes.
  5. Remove the skillet from heat. Stir in the leftover rice, lemon zest, lemon juice, oregano, salt, and pepper.
  6. Mix in half the crumbled feta until evenly distributed.
  7. Transfer the mixture to the prepared baking dish and spread it evenly.
  8. Sprinkle the remaining feta over the top.
  9. Bake for 20 to 25 minutes until the top is lightly golden.

Extra Tips

Use the freshest lemon you can find, as its zest and juice provide the main flavor lift. If your leftover rice is very dry, add a small splash of water before mixing to keep the casserole moist after baking. Leftovers reheat well in a covered dish at 350 degrees for 10 minutes.Course: Main Course Cuisine: Greek Equipment: Large skillet, Baking dish, Mixing bowl

Ham and Sweet Potato Rice Casserole

This casserole turns leftover rice and ham into a hearty weeknight meal with minimal effort. Sweet potato adds natural sweetness that balances the savory ham while the rice soaks up the flavors during baking.

The result is a creamy, slightly sweet dish with tender chunks of potato and plenty of cheesy goodness on top. It works well for using up holiday ham or random fridge leftovers.

Ham and Sweet Potato Rice Casserole

Serves 4 people.

Ingredients

  • 3 cups leftover cooked rice
  • 2 cups diced ham
  • 2 medium sweet potatoes, peeled and diced
  • 1 medium onion, diced
  • 2 cloves garlic, minced
  • 1 cup shredded cheddar cheese
  • 1/2 cup chicken broth
  • 1 tablespoon olive oil
  • 1/2 teaspoon salt
  • 1/4 teaspoon black pepper

Instructions

  1. Preheat the oven to 375°F and lightly grease a baking dish.
  2. Heat the olive oil in a large skillet over medium heat. Add the diced sweet potatoes and onion. Cook for 8 to 10 minutes, stirring occasionally, until the sweet potatoes begin to soften.
  3. Stir in the minced garlic and diced ham. Cook for 2 more minutes.
  4. Add the leftover rice, chicken broth, salt, and black pepper to the skillet. Stir everything together until the rice is evenly coated and warmed through.
  5. Remove the skillet from heat and stir in half of the shredded cheddar cheese.
  6. Transfer the mixture to the prepared baking dish and sprinkle the remaining cheese over the top.
  7. Bake for 20 minutes until the cheese is melted and the edges are lightly golden.

Extra Tips

If the sweet potatoes still feel firm after the initial skillet step, add an extra splash of broth before baking to help them finish cooking. Leftovers reheat well in the microwave with a damp paper towel on top to keep the rice from drying out. For a milder flavor, swap the cheddar for mozzarella.

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Course: Main Course Cuisine: American Equipment: Large skillet, Baking dish, Mixing bowl

Indian Butter Chicken Rice Casserole

This casserole turns leftover rice into a creamy, spiced bake with tender chicken in a buttery tomato sauce. It works well on busy weeknights when you have rice and cooked chicken on hand and want a low-effort meal that still feels satisfying.

The dish combines warm Indian spices with a rich sauce that coats the rice evenly. A layer of melted cheese on top adds a nice contrast to the soft texture inside.

Indian Butter Chicken Rice Casserole

Serves 4 people.

Ingredients

  • 3 cups leftover cooked rice
  • 2 cups cooked chicken, cubed
  • 4 tablespoons butter
  • 1 medium onion, diced
  • 3 cloves garlic, minced
  • 1 can (14 oz) tomato sauce
  • 1/2 cup heavy cream
  • 1 tablespoon garam masala
  • 1 teaspoon ground cumin
  • 1 teaspoon paprika
  • 1/2 teaspoon salt
  • 1 cup shredded mozzarella cheese
  • Fresh cilantro, for garnish

Instructions

  1. Preheat the oven to 375°F and lightly grease a 9×13 inch baking dish.
  2. Melt the butter in a large skillet over medium heat. Add the diced onion and cook for 3 minutes until softened.
  3. Stir in the minced garlic, garam masala, cumin, paprika, and salt. Cook for 1 minute until fragrant.
  4. Pour in the tomato sauce and heavy cream. Stir well and simmer for 2 minutes to combine.
  5. Add the leftover rice and cubed chicken to the skillet. Mix until everything is evenly coated with the sauce.
  6. Transfer the mixture to the prepared baking dish and spread it into an even layer.
  7. Sprinkle the shredded mozzarella cheese over the top.
  8. Bake for 20 minutes until the cheese is melted and lightly golden.
  9. Remove from the oven and let it rest for 5 minutes before garnishing with fresh cilantro.

Extra Tips

If the sauce thickens too much while simmering, add a splash of water or milk to loosen it before mixing with the rice. Leftovers reheat well in the microwave with a damp paper towel over the dish to keep the rice moist. For a milder version, reduce the garam masala by half.Course: Main Course Cuisine: Indian Equipment: Large Skillet, 9×13 Inch Baking Dish, Wooden Spoon

Pepperoni Pizza-Style Rice Casserole

This casserole turns leftover rice into a quick weeknight meal that feels like pizza night. It works well when you have cooked rice on hand and want something hearty without much effort. The result is a baked dish with tomato flavor throughout the rice and plenty of melted cheese.

The texture stays soft inside with a slightly crisp top from the pepperoni and browned cheese. It is a practical way to use up rice while creating a family-friendly dinner.

Pepperoni Pizza-Style Rice Casserole

Serves 4 people.

Ingredients

  • 3 cups leftover cooked rice
  • 1 1/2 cups pizza sauce
  • 1 cup diced onion
  • 1 green bell pepper, diced
  • 2 cups shredded mozzarella cheese
  • 1 cup sliced pepperoni
  • 1 teaspoon Italian seasoning
  • 1/2 teaspoon garlic powder

Instructions

  1. Preheat the oven to 375°F and lightly grease an 8×8 baking dish.
  2. In a large mixing bowl, stir together the leftover rice, pizza sauce, diced onion, diced bell pepper, Italian seasoning, and garlic powder until evenly combined.
  3. Mix in 1 cup of the shredded mozzarella cheese.
  4. Spread the rice mixture into the prepared baking dish in an even layer.
  5. Sprinkle the remaining 1 cup of mozzarella cheese over the top, then arrange the pepperoni slices in a single layer across the surface.
  6. Bake for 20 to 25 minutes, until the cheese is fully melted and the edges are lightly browned.

Extra Tips

Day-old rice works best here because it holds its shape and absorbs the sauce without turning mushy. If your pepperoni releases a lot of oil during baking, blot the top lightly with a paper towel before serving. Leftovers keep in the fridge for up to three days and reheat best in a 350°F oven to restore some crispness to the pepperoni.Course: Main Course Cuisine: Italian Equipment: Baking dish, Mixing bowl, Oven

Roasted Root Vegetable Herb Rice Casserole

This casserole turns leftover rice and any root vegetables sitting in the fridge into a hearty meal. Roasted carrots, sweet potatoes, and parsnips bring earthy sweetness while fresh herbs add brightness. The rice absorbs the flavors during baking and creates a satisfying texture with bits of melted cheese throughout.

It works well on busy weeknights when you want something warm and filling without extra shopping. The dish tastes savory and slightly sweet with a tender yet firm bite from the roasted vegetables.

Roasted Root Vegetable Herb Rice Casserole

Serves 4 people.

Ingredients

  • 3 cups leftover cooked rice
  • 4 cups diced mixed root vegetables (carrots, sweet potatoes, parsnips)
  • 2 tablespoons olive oil
  • 1 medium onion, diced
  • 2 cloves garlic, minced
  • 1 tablespoon chopped fresh rosemary
  • 1 tablespoon chopped fresh thyme
  • 1/2 cup vegetable broth
  • 1 cup shredded cheddar cheese
  • Salt and black pepper to taste
  • 2 tablespoons chopped fresh parsley

Instructions

  1. Preheat the oven to 425 degrees. Toss the diced root vegetables with 1 tablespoon olive oil, half the rosemary, half the thyme, salt, and pepper on a baking sheet. Roast for 20 minutes until the edges start to brown.
  2. Heat the remaining tablespoon of olive oil in a skillet over medium heat. Add the onion and cook for 5 minutes until softened. Stir in the garlic and cook for 1 minute more.
  3. Combine the leftover rice, roasted root vegetables, onion mixture, remaining herbs, vegetable broth, and half the cheddar cheese in a large bowl. Season with salt and pepper and mix well.
  4. Transfer the mixture to a greased 9×13 baking dish. Sprinkle the remaining cheddar cheese evenly over the top.
  5. Bake for 20 minutes until the cheese is melted and the edges are lightly golden. Remove from the oven and let it rest for 5 minutes before sprinkling with fresh parsley.

Extra Tips

Roast the vegetables until the edges caramelize for deeper flavor that stands up to the rice. If your leftover rice is very dry, add an extra splash of broth before baking. Leftovers reheat well in a covered skillet with a little water to restore moisture.Course: Main Course Cuisine: American Equipment: Baking sheet, Skillet, Large mixing bowl, 9×13 baking dish

Turkey Cranberry Stuffing-Style Rice Casserole

This casserole turns leftover turkey and rice into a cozy dish that captures the flavors of holiday stuffing. Sweet-tart cranberries and classic herbs like sage and thyme give it a familiar taste, while the rice keeps the texture light and hearty.

It works well for weeknight meals after Thanksgiving or any time you need to use up cooked rice and turkey. The result feels like a fresh take on stuffing without extra bread or fuss.

Turkey Cranberry Stuffing-Style Rice Casserole

Serves 4 people.

Ingredients

  • 3 cups leftover cooked rice
  • 2 cups chopped cooked turkey
  • 1 onion, finely chopped
  • 2 celery stalks, finely chopped
  • 1/2 cup dried cranberries
  • 1 teaspoon dried sage
  • 1 teaspoon dried thyme
  • 1/2 cup turkey or chicken broth
  • 2 tablespoons butter
  • Salt and pepper to taste
  • 1/4 cup chopped fresh parsley

Instructions

  1. Preheat the oven to 375 degrees and lightly grease a medium baking dish.
  2. Melt the butter in a large skillet over medium heat. Add the onion and celery, then cook until softened.
  3. Stir in the sage and thyme, and cook for one minute until fragrant.
  4. Add the leftover rice, chopped turkey, dried cranberries, and broth to the skillet. Season with salt and pepper, then mix everything until well combined and heated through.
  5. Transfer the mixture to the prepared baking dish and spread it evenly.
  6. Bake for 20 minutes until the top is lightly golden and the edges bubble.
  7. Remove from the oven and sprinkle with fresh parsley before serving.

Extra Tips

Stir in an extra splash of broth before baking if the rice looks dry, since it helps the flavors soak in evenly. Leftovers reheat well in the microwave with a damp paper towel on top to keep the rice moist. You can swap dried cranberries for fresh ones if they are in season, but chop them first so they distribute better.Course: Main Course Cuisine: American Equipment: Large skillet, Baking dish, Mixing bowl

  • Christy Myers

    I'm Christy, founder of Spiritual Ark and a dedicated writer and spiritual explorer. My journey is all about transformation and personal growth. In my articles, I share insights and practical wisdom on various spiritual topics and show you how you can grow spiritually. I'm committed to learning and invite you to join me in exploring the depths of spirituality for a deeper connection, understanding, and empowerment.

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