Stuffed Pepper Casserole is a comforting dish that brings warm, hearty flavors to the table. I remember the first time I made it for my family; the aromas filled our kitchen, drawing everyone in with excitement. It quickly became a favorite, combining the classic flavors of stuffed peppers into a satisfying and easy-to-prepare casserole.
This recipe is perfect for busy weeknights or cozy weekends when you want something delicious yet straightforward. With its layers of rice, ground beef, and melted cheese, this dish delivers both comfort and flavor in every bite.
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Why You’ll Love This Recipe
- Easy Preparation: You can whip up this casserole in under an hour, making it perfect for weeknight dinners.
- Family Favorite: The combination of flavors pleases everyone, making it a hit with both kids and adults.
- One-Pot Meal: Cook everything in one skillet and then bake, reducing cleanup time.
- Customizable: You can easily swap ingredients to accommodate personal preferences or dietary needs.
- Delicious Leftovers: This dish reheats beautifully, making it ideal for meal prep or packed lunches.
Ingredients You'll Need
- Olive oil – 1 tablespoon. Used for sautéing vegetables.
- Onion – 1, peeled and finely diced. Adds sweetness and depth to the flavor.
- Red bell pepper – 1, deseeded and diced. Provides color and sweetness.
- Green bell pepper – 1, deseeded and diced. Adds freshness and crunch.
- Garlic cloves – 3, finely chopped or minced. Offers a robust flavor.
- Ground beef – 1 lb. The main protein that makes this dish hearty.
- Tomato sauce – 23 oz. Brings moisture and tanginess to the casserole.
- Beef stock – 1 cup. Enhances the flavor and richness of the dish.
- Diced tomatoes – 14.5 oz can. Adds texture and acidity.
- Worcestershire sauce – 1 tablespoon. Contributes savory depth.
- Smoked paprika – 2 teaspoons. Infuses a smoky flavor.
- Italian seasoning – 2 teaspoons. Provides a classic Italian herb profile.
- Salt and pepper – to taste. Essential for seasoning.
- Long grain white rice – 1 cup. A staple that makes this casserole filling.
- Cheddar cheese – 1 cup, divided. Melts beautifully to create a cheesy topping.
- Mozzarella cheese – 1 cup, divided. Adds gooeyness and flavor.
- Fresh parsley – ¼ cup, chopped, for garnishing (optional). Adds a fresh touch to your dish.
How to Make Stuffed Pepper Casserole
Step 1: Preheat the Oven
Preheat your oven to 350°F (175°C). This ensures that the casserole cooks evenly once prepared.
Step 2: Sauté the Vegetables
Heat the olive oil in a large skillet over medium-high heat. Add the diced onion, red bell pepper, and green bell pepper, cooking until they soften, about 5 minutes.
Step 3: Add Garlic
Add the minced garlic to the skillet and cook for another minute, stirring until it becomes fragrant.
Step 4: Cook the Beef
Introduce the ground beef to the skillet. Cook until it is browned and no longer pink, breaking up any lumps with a spatula.
Step 5: Mix in the Sauce Ingredients
Stir in the tomato sauce, beef stock, diced tomatoes, Worcestershire sauce, smoked paprika, and Italian seasoning. Season the mixture with salt and pepper to taste.
Step 6: Combine the Rice
Add the long grain white rice, mixing well until everything is fully combined and brings it to a boil. Then, remove the skillet from heat.
Step 7: Bake the Casserole
Cover the skillet with a lid or aluminum foil and place it in the oven. Bake for 40 minutes to allow the flavors to meld.
Step 8: Add the Cheese
After 40 minutes, carefully remove the lid or foil. Sprinkle the cheddar and mozzarella cheeses on top and return to the oven for an additional 5 minutes, until the cheese is melted and bubbly.
Step 9: Serve and Enjoy
Once the cheese has melted, remove from the oven. If desired, garnish with freshly chopped parsley before serving. Enjoy your homemade stuffed pepper casserole!
Pro Tips from My Kitchen
✓ Sautéing Time – Make sure to sauté the vegetables until they are just tender. Overcooking can make them mushy, affecting the texture of the casserole.
✓ Rice Choice – Long grain rice is preferred for this recipe, as it cooks evenly and absorbs the flavors well. Avoid using quick-cooking rice, as it may become too soft.
✓ Flavor Boost – For a spicier kick, add diced jalapeños or red pepper flakes while cooking the beef. Adjust according to your heat preference.
✓ Cheese Melting – Mix the cheddar and mozzarella together for a rich, gooey topping. You can also use pepper jack for an extra kick.
✓ Leftovers Storage – Store any leftovers in an airtight container in the refrigerator. It keeps well for up to 3 days and reheats beautifully in the microwave or oven.
Serving Ideas and Variations
- This casserole pairs wonderfully with a simple green salad or garlic bread for a complete meal.
- For a twist, try adding black beans or corn to the mixture for added texture and flavor.
- Serve with a dollop of sour cream or Greek yogurt on top for added creaminess.
- For a healthier version, swap ground beef for ground turkey or use quinoa instead of rice for a nutritious alternative.
Frequently Asked Questions About Stuffed Pepper Casserole
Yes, you can use ground turkey or chicken as a leaner alternative. You can also use plant-based ground meat for a vegetarian option, ensuring to adjust the cooking time accordingly.
Bake the casserole covered for 40 minutes, then uncover to add cheese and bake for an additional 5 minutes. Ensure the rice is fully cooked and the mixture is heated through before serving.
Yes, you can make this casserole ahead of time. Assemble all ingredients and refrigerate it for up to 24 hours. Simply bake it when you are ready to cook.
This can happen if the rice absorbs too much moisture. To prevent this, make sure you fully cook the rice according to the package instructions before adding it to the mix. Also, be cautious with the liquid amounts you add.
Serve this casserole with a fresh garden salad, steamed vegetables, or your favorite bread. It also makes a hearty meal on its own.
Stuffed Pepper Casserole Recipe
Ingredients
- 1 tablespoon Olive oil
- 1 Onion, peeled and finely diced
- 1 Red bell pepper, deseeded and diced
- 1 Green bell pepper, deseeded and diced
- 3 Garlic cloves, finely chopped or minced
- 1 lb Ground beef
- 23 oz Tomato sauce
- 1 cup Beef stock
- 14.5 oz Diced tomatoes (canned)
- 1 tablespoon Worcestershire sauce
- 2 teaspoons Smoked paprika
- 2 teaspoons Italian seasoning
- Salt and pepper
- 1 cup Long grain white rice
- 1 cup Cheddar cheese, divided
- 1 cup Mozzarella cheese, divided
- ¼ cup Fresh parsley, chopped (optional)
Instructions
- Preheat your oven to 350°F (175°C).
- Heat the olive oil in a large skillet over medium-high heat.
- Add the diced onion, red bell pepper, and green bell pepper, cooking until they soften, about 5 minutes.
- Add the minced garlic and cook for another minute until fragrant.
- Introduce the ground beef to the skillet. Cook until browned, breaking up any lumps.
- Stir in the tomato sauce, beef stock, diced tomatoes, Worcestershire sauce, smoked paprika, and Italian seasoning. Season with salt and pepper to taste.
- Add the long grain white rice and mix well. Bring to a boil, then remove from heat.
- Cover the skillet and place it in the oven. Bake for 40 minutes.
- After 40 minutes, remove the lid or foil and sprinkle the cheeses on top. Bake for an additional 5 minutes until melted and bubbly.
- Remove from the oven and garnish with freshly chopped parsley if desired. Serve and enjoy!
Notes
- For a healthier version, substitute ground beef with ground turkey or quinoa instead of rice.
- This casserole keeps well for up to 3 days in the refrigerator.
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