Stuffed Pepper Casserole

Savor every bite of this Stuffed Pepper Casserole, where vibrant bell peppers meld with seasoned ground beef and melty cheese in a comforting, oven-baked embrace. This beginner-friendly dinner takes the classic flavors of stuffed peppers and transforms them into an easy, family-friendly casserole that’s perfect for weeknight meals or cozy weekend feasts. With just 15 minutes of prep, 40 minutes in the oven, and a short 5-minute rest, you’ll be slicing into layers of tender veggies, savory meat, and gooey cheese before you know it. Each serving clocks in around 450 calories, making it a balanced choice for busy evenings when you still want homemade comfort food without the fuss.

Bursting with color and texture, this dish marries the natural sweetness of red, green, and yellow peppers with aromatic onions and garlic, while hearty rice adds just the right amount of body. Italian seasoning brings an herbaceous note, and a duo of mozzarella and cheddar cheeses ensures every scoop is rich and indulgent. Whether you’re cooking for a crowd or simply craving a satisfying solo dinner, this casserole promises to deliver warmth, flavor, and a hit of nostalgia—no special equipment needed, only a skillet, a baking dish, and your appetite.

KEY INGREDIENTS IN STUFFED PEPPER CASSEROLE

Before getting started, let’s gather the key players that make this casserole shine. Each ingredient has a special job, from building layers of flavor to bringing out the perfect gooey cheese pull. Having everything prepped and ready ensures a smooth cooking flow and lets you focus on those delicious aromas filling your kitchen.

• Lean ground beef

Provides a meaty, protein-packed foundation and deep savory notes. Browning it properly gives the casserole a rich, caramelized flavor.

• Cooked rice

Absorbs juices from the tomatoes and peppers, adding a tender, fluffy texture that makes each bite comforting and substantial.

• Bell peppers

Offer a sweet, crisp contrast to the savory beef. The red, green, and yellow varieties bring a rainbow of color and a range of subtle peppery flavors.

• Onion

Lends aromatic sweetness and body. When sautéed until translucent, it softens and mellows, creating a flavorful base for the casserole.

• Garlic

Intensifies the overall taste with its pungent aroma. Minced and sautéed, it infuses every layer with zesty depth.

• Diced tomatoes

Contribute bright acidity and juiciness. The undrained juices help create a saucy consistency that binds the casserole together.

• Tomato sauce

Thickens the filling and adds concentrated tomato flavor, ensuring the dish stays moist and richly flavored.

• Italian seasoning

A fragrant blend of herbs (like oregano, basil, and thyme) that ties together the beef, tomatoes, and peppers with a classic Mediterranean flair.

• Salt

Enhances and balances all the flavors, making each ingredient pop without overwhelming the palate.

• Black pepper

Adds a mild bite and subtle heat, cutting through the richness of the cheese and beef.

• Mozzarella cheese

Melts into stretchy, gooey layers that hold the casserole together. Its mild, creamy taste complements the bold veggies and beef.

• Cheddar cheese

Brings sharp, tangy notes and a vibrant orange color to the topping, creating a delightful crust when baked.

• Olive oil

Used for sautéing, it lends a smooth mouthfeel and helps sweat onions and garlic to perfection without sticking.

• Fresh parsley (optional)

Adds a pop of fresh color and herbal brightness when sprinkled over the hot casserole just before serving.

HOW TO MAKE STUFFED PEPPER CASSEROLE

Rolling up your sleeves and diving into this Stuffed Pepper Casserole is easy, thanks to a straightforward sequence of steps. From sizzling aromatic veggies in a skillet to layering rich cheeses in a baking dish, each phase builds flavor and texture. Follow along as we break down the process into clear, manageable actions—no culinary degree required!

1. Preheat your oven to 375°F (190°C) and position a rack in the center to ensure even baking.

2. In a large skillet, heat the olive oil over medium heat. Add the chopped onion and minced garlic, sautéing until the onion turns translucent, about 3–4 minutes, stirring occasionally.

3. Add the lean ground beef to the skillet. Use a wooden spoon to break it apart and cook until fully browned, roughly 5–7 minutes. Drain any excess fat to keep the casserole from becoming greasy.

4. Stir in the diced bell peppers and continue cooking for another 3–4 minutes, until they begin to soften and release their sweet aroma.

5. Add the cooked rice, diced tomatoes with their juices, tomato sauce, Italian seasoning, salt, and black pepper. Stir well to combine, ensuring every grain of rice and piece of meat is coated.

6. Simmer the mixture on low heat for 10 minutes, allowing flavors to meld. Stir occasionally to prevent sticking and encourage even cooking.

7. Remove the skillet from heat and stir in 1 cup of the mozzarella cheese, letting it melt into the warm filling.

8. Transfer the cheesy mixture into a greased 9×13-inch baking dish, using a spatula to spread it evenly.

9. Sprinkle the top with the remaining 1 cup of mozzarella cheese and 1 cup of cheddar cheese, creating a generous, bubbly layer.

10. Cover the dish with aluminum foil and bake for 20 minutes, trapping steam to keep the casserole moist.

11. After 20 minutes, remove the foil and bake an additional 10 minutes, or until the cheese is bubbling and beginning to brown at the edges.

12. Remove from the oven and allow the casserole to sit for about 5 minutes to set, making it easier to serve.

13. Garnish with freshly chopped parsley, if desired, before slicing into squares and serving.

SERVING SUGGESTIONS FOR STUFFED PEPPER CASSEROLE

Serving this casserole is all about balancing textures and flavors while creating an inviting spread that’s both appetizing and nourishing. Whether you’re plating it at the dinner table for family night or bringing it to a potluck, a few thoughtful touches can elevate the presentation and overall experience. Consider complementary sides that contrast the casserole’s richness with crispness, freshness, or a hint of acidity. Don’t be afraid to play up your favorite garnishes—these finishing details take your meal from homey to chef-worthy.

• Pair each slice with a refreshing green salad tossed in a tangy vinaigrette. The bright acidity cuts through the richness of the cheese and beef, creating a balanced mouthfeel.
• Serve alongside garlic bread or crusty baguette. The crispy exterior soaks up any extra tomato juices, while the soft interior complements the casserole’s tender layers.
• Offer a dollop of Greek yogurt or sour cream on the side for a cool, creamy contrast. A sprinkle of chopped cilantro or parsley over each portion adds herbal brightness.
• Drizzle a bit of extra-virgin olive oil with a dash of red pepper flakes for those craving an extra kick. The aromatic oil brings a sophisticated flair and subtle heat.

HOW TO STORE STUFFED PEPPER CASSEROLE

Knowing how to store your leftovers means you can enjoy this tasty casserole again without losing any of its fresh-baked appeal. Proper storage preserves texture, prevents dryness, and keeps flavors vibrant for days. Whether you plan to tuck away extra portions in the fridge or freeze them for busy nights ahead, follow these tips to maintain that just-baked taste and gooey cheese pull.

• Refrigerator storage: Allow the casserole to cool completely, then cover tightly with plastic wrap or transfer individual portions into airtight containers. Stored this way, it will stay fresh for up to 3 days.
• Freezer method: Portion the cooled casserole into freezer-safe containers or heavy-duty plastic bags. Squeeze out excess air and seal. It can be frozen for up to 2 months without significant loss of quality.
• Thawing and reheating: For best results, thaw frozen portions overnight in the refrigerator. Reheat in a 350°F oven for 15–20 minutes, or until warmed through and cheese is melted. You can also microwave on medium power, stirring halfway.
• Preventing sogginess: If the casserole becomes too moist after storing, remove the lid or wrap and bake at 350°F for 5–10 minutes to restore a light crust on top.

CONCLUSION

We’ve journeyed from chopping vibrant peppers and onions to savoring the last cheesy bite of this Stuffed Pepper Casserole, and you’ve learned how simple it is to bring a classic comfort food to your table. This beginner-friendly dinner combines the heartiness of ground beef, the sweetness of bell peppers, and the gooey pull of mozzarella and cheddar into one satisfying bake. With 15 minutes of prep, 40 minutes in the oven, and a brief 5-minute rest, you’ll have a colorful, flavor-packed dish that pleases both kids and adults. You can print this article or save it in your digital recipe binder for easy access whenever you need a crowd-pleaser that feels both nostalgic and fresh.

Whether you’re hosting a family dinner, meal-prepping for the week, or simply craving something warm and tasty, this casserole delivers every time. Don’t forget that you can find a helpful FAQ below for troubleshooting, ingredient swaps, and more tips tailored to your cooking style. If you give this recipe a try or have any questions along the way, let me know in the comments. I’d love to hear about your tweaks, favorite serving ideas, or any feedback that helped make this dish your own. Happy cooking!

Print Recipe

Stuffed Pepper Casserole

Author: Noah Blake Courses: Dinner

Difficulty: Beginner Prep Time 15 mins Cook Time 40 mins Rest Time 5 mins Total Time 1 hr

Calories: 450

Description

This Stuffed Pepper Casserole is a delicious blend of savory ground beef, colorful bell peppers, and melting cheese, all baked to perfection. It’s a family-friendly meal bursting with flavor!

Ingredients

Scale

1/2x 1x 2x 3x

• 1 lb lean ground beef

• 1 cup cooked white or brown rice

• 3 large bell peppers (red, green, or yellow), diced

• 1 medium onion, chopped

• 3 cloves garlic, minced

• 1 (15 oz) can diced tomatoes, undrained

• 1 (8 oz) can tomato sauce

• 1 tsp Italian seasoning

• 1 tsp salt

• ¹⁄₂ tsp black pepper

• 2 cups shredded mozzarella cheese

• 1 cup shredded cheddar cheese

• 2 tbsp olive oil

• ¹⁄₄ cup chopped fresh parsley (optional)

Instructions

1. Preheat your oven to 375°F (190°C).
2. In a large skillet, heat the olive oil over medium heat. Add the chopped onion and garlic, sautéing until the onion becomes translucent, about 3-4 minutes.
3. Add the lean ground beef to the skillet, breaking it apart with a wooden spoon, and cook until browned and fully cooked through, approximately 5-7 minutes. Drain any excess fat.
4. Stir in the diced bell peppers and cook for an additional 3-4 minutes until they begin to soften.
5. Add the cooked rice, diced tomatoes with their juice, tomato sauce, Italian seasoning, salt, and black pepper. Stir well to combine all the ingredients evenly.
6. Allow the mixture to simmer on low heat for 10 minutes to let the flavors meld together. Stir occasionally to prevent sticking.
7. Remove the skillet from heat and stir in 1 cup of the mozzarella cheese.
8. Transfer the mixture into a greased 9x13 inch baking dish, spreading it evenly.
9. Sprinkle the top with the remaining 1 cup of mozzarella cheese and 1 cup of cheddar cheese.
10. Cover the dish with aluminum foil and bake in the preheated oven for 20 minutes.
11. After 20 minutes, remove the foil and bake an additional 10 minutes, or until the cheese is bubbling and starting to brown slightly.
12. Remove the casserole from the oven and allow it to sit for about 5 minutes before serving.
13. Garnish with freshly chopped parsley if desired.

Nutrition Facts

Serving Size 6

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Amount Per Serving

Calories 75kcal

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Note

• You can substitute ground beef with ground turkey or chicken for a lighter version.
• For extra heat, consider adding 1/4 tsp of crushed red pepper flakes.
• Leftovers can be stored in an airtight container in the refrigerator for up to 3 days.
• Try mixing in other vegetables such as corn or zucchini for added nutrition.
• This dish pairs well with a simple side salad or garlic bread to complement the flavors.

Keywords: stuffed pepper casserole, ground beef, mozzarella cheese, bell peppers, easy dinner, comfort food