Stuffed Pepper Casserole is a delightful blend of flavors that turns the classic stuffed pepper into a cozy, hearty dish that’s perfect for any weeknight dinner. This recipe is a step-by-step journey showcasing the vibrant colors and textures of nutritious bell peppers, coupled with savory ground beef, fragrant garlic, and aromatic spices. As the casserole simmers in the oven, the melty cheddar cheese blankets the dish in a comforting embrace, making it irresistible to kids and adults alike. You’ll find that this meal is not only delicious but also simple to prepare, making it a great option for busy schedules. If you’re seeking a filling, family-friendly recipe that packs immense flavor in minimal time, look no further than this fantastic casserole.
Why You’ll Love This Recipe
This Stuffed Pepper Casserole stands out for numerous reasons. First and foremost, it’s incredibly easy to prep, ensuring you won’t spend hours in the kitchen. With just one skillet and one baking dish, cleanup is a breeze, making it an excellent choice for those hectic evenings. It’s also family-friendly; the combination of meat, cheese, and vegetables will please even the pickiest eaters.
Moreover, this recipe allows for a quick cooking time, generally finished in about an hour, which is perfect for busy families. With minimal ingredients, you get a hearty meal that is also budget-friendly. It’s an excellent option for meal prepping, too, ensuring your week is filled with delightful leftovers.
Ingredients for Stuffed Pepper Casserole

- 1 pound ground beef, seasoned and browned to perfection
- 1 tablespoon olive oil, to add richness and flavor
- 1 small onion, diced for a sweet undertone
- 2 cloves garlic, minced, because garlic makes everything better
- 2 large bell peppers, diced (any color), bringing a rainbow of flavor
- 1½ cups cooked white rice, the base that holds it all together
- 1 can (14.5 ounces) diced tomatoes, drained for that hint of freshness
- 1 can (8 ounces) tomato sauce, delivering rich depth
- 2 tablespoons tomato paste, concentrating the tomato flavor
- 1 tablespoon Worcestershire sauce, a savory kick you can’t resist
- 1½ teaspoons Italian seasoning, bursting with herbs and spices
- Salt and pepper, to taste for the perfect seasoning
- 1½ to 2 cups shredded cheddar cheese, to crown your casserole with cheesy goodness
Step-by-Step Directions
- Preheat the Oven: Begin by preheating your oven to 350°F (175°C) and greasing a 9×13-inch baking dish. This will ensure that your casserole has a great non-stick surface for perfect serving.
- Sauté Onion and Garlic: In a large skillet, heat the olive oil over medium heat. Add in the diced onion and sauté for about 3–4 minutes until it becomes fragrant and soft.
- Brown the Beef: Add minced garlic to the skillet and cook for another 30 seconds until it fills the air with that delicious aroma. Stir in the ground beef and cook until it’s browned all over, using a spoon to break it apart. Once browned, drain any excess fat.
- Incorporate the Peppers: Toss in the diced bell peppers and allow them to cook for an additional 4–5 minutes, letting them soften just a bit.
- Mix in Sauces and Seasoning: Next, stir in the drained diced tomatoes, tomato sauce, tomato paste, Worcestershire sauce, Italian seasoning, salt, and pepper. Let the mixture simmer for about 5 minutes to mingle the flavors.
- Combine with Rice: Remove the skillet from the heat and gently fold in the cooked rice until everything is fully mixed and combined.
- Transfer to Baking Dish: Pour the hearty mixture into the greased baking dish, spreading it evenly.
- Cheese on Top: Generously sprinkle the shredded cheddar cheese over the top of the casserole, ensuring that every bite will be cheesy heavenly.
- Bake Until Bubbly: Place the casserole in the oven and bake for 20–25 minutes, or until the cheese is melted and bubbly, creating a beautiful, golden topping.
- Rest and Serve: After removing the casserole from the oven, let it rest for a few minutes. This helps to set everything so you can serve it in perfect portions.
Tips & Tricks
- Chef’s Secret: For a flavor boost, try adding some chopped fresh basil or parsley as a garnish before serving.
- Optional Extras: You can easily customize this recipe by adding other vegetables such as corn or black beans for additional nutrition.
- Cooking Hack: If you like a little kick, sprinkle in some crushed red pepper flakes while sautéing the garlic.
Serving Suggestions & Pairings
Stuffed Pepper Casserole pairs beautifully with a fresh green salad, offering a crisp contrast to the rich flavors of the casserole. You could also serve it with warm, crusty bread or tortillas to scoop up the delicious melty cheese and savory beef mixture. For a delightful twist, consider pairing it with a side of guacamole or sour cream for added creaminess.
Nutritional Information
A serving of this Stuffed Pepper Casserole contains approximately 350-400 calories, depending on the cheese used and the serving size. It’s rich in protein and offers a hefty serving of vegetables, making it a balanced meal option for families. You can enjoy this meal knowing it delivers both flavor and essential nutrients.
Storing Tips & Variations for Stuffed Pepper Casserole
To store leftovers, simply cover the casserole dish with plastic wrap or transfer it to an airtight container. It can be kept in the refrigerator for up to 3-4 days. If you want to freeze it, portion it out in freezer-safe containers or bags and label them with the date. Reheat in the oven or microwave until heated through.
For healthier swaps, consider using ground turkey or a plant-based protein to make it vegetarian-friendly. You can also use cauliflower rice instead of white rice for a low-carb version, giving you the same satisfying texture with fewer calories.
Conclusion for Stuffed Pepper Casserole
If you haven’t already, it’s time to try your hand at making Stuffed Pepper Casserole today! This recipe is sure to become a beloved staple in your home, offering comfort, flavor, and simplicity all in one dish. Don’t wait for another busy weeknight to give it a shot—gather your ingredients now and get cooking!
FAQs
1. Can I make this casserole ahead of time? Absolutely! You can prepare the casserole up to the baking step, cover it, and store it in the refrigerator for up to 24 hours before baking.
2. Is it possible to make this casserole vegetarian? Yes! Simply substitute the ground beef with a plant-based meat alternative or extra beans and add more veggies for flavor.
3. How do I reheat leftovers? You can reheat it in the microwave or in the oven at 350°F (175°C) until warmed through.
4. Can I use different types of cheese? Definitely! Feel free to switch out cheddar for mozzarella, Monterey Jack, or even a blend of cheeses for a unique flavor profile.
5. What can I serve with Stuffed Pepper Casserole? A fresh garden salad, garlic bread, or steamed vegetables make excellent sides to complement the casserole.

Stuffed Pepper Casserole
Ingredients
Meat and Base
- 1 pound ground beef, seasoned and browned Use any ground beef you prefer.
- 1 tablespoon olive oil For richness and flavor.
- 1 small onion, diced For a sweet undertone.
- 2 cloves garlic, minced Garlic enhances flavors.
- 1.5 cups cooked white rice The base that holds it all together.
Vegetables and Sauces
- 2 large bell peppers, diced Any color of your choice.
- 1 can diced tomatoes (14.5 ounces), drained Adds freshness.
- 1 can tomato sauce (8 ounces) Provides rich depth.
- 2 tablespoons tomato paste For concentrating tomato flavor.
- 1 tablespoon Worcestershire sauce Adds a savory kick.
- 1.5 teaspoons Italian seasoning For a burst of herbs and spices.
- Salt and pepper to taste Salt and pepper For perfect seasoning.
Cheese
- 1.5 to 2 cups shredded cheddar cheese For cheesy goodness on top.
Instructions
Preparation
- Preheat the oven to 350°F (175°C) and grease a 9x13-inch baking dish.
- In a large skillet, heat the olive oil over medium heat.
- Add the diced onion and sauté for about 3–4 minutes until soft.
- Add minced garlic and cook for another 30 seconds.
- Stir in the ground beef and cook until browned, draining excess fat afterwards.
- Toss in the diced bell peppers and let cook for an additional 4-5 minutes.
- Stir in the diced tomatoes, tomato sauce, tomato paste, Worcestershire sauce, Italian seasoning, salt, and pepper. Simmer for about 5 minutes.
- Remove from the heat and fold in the cooked rice.
- Pour the mixture into the greased baking dish, spreading it evenly.
- Sprinkle shredded cheddar cheese generously over the top.
- Bake in the oven for 20–25 minutes or until cheese is melted and bubbly.
- Let it rest for a few minutes before serving.





