Name: Stuffed Pepper Casserole Recipe
Prep time: 10 min
Cook time: 25 min
Total time: 35 min
Cuisine: American
Ingredients: ¾ pound ground beef; 2 cups chopped bell peppers; ½ medium onion, finely chopped; 2 cloves garlic, finely minced; ¾ teaspoon salt; ½ teaspoon dried oregano; ¼ teaspoon pepper; ¼ teaspoon cumin; 2 cups low-sodium chicken broth; 1 cup tomato salsa; 1 cup long-grain white rice, rinsed; 1 cup shredded mozzarella cheese

Jump to Recipe· 3.8 from 12 reviews

I absolutely adore this Stuffed Pepper Casserole Recipe because it captures all the comforting, vibrant flavors of classic stuffed peppers but with so much less fuss. The meld of savory ground beef, tender peppers, aromatic spices, and gooey melted mozzarella all baked into one wholesome dish is like a warm hug on a plate. Whenever I want a satisfying meal that feels homemade yet comes together quickly, this recipe is my go-to favorite.

Why You’ll Love This Stuffed Pepper Casserole Recipe

What really makes this Stuffed Pepper Casserole Recipe stand out to me is the incredible balance of flavors. The sweetness of the bell peppers pairs beautifully with the savory, spiced beef and the tangy tomato salsa, while the cheese adds a luscious creaminess on top. It’s a flavor profile that feels so familiar but fresh and inviting every single time I make it. The lightly spiced, tender rice soaks up all the juices and ties everything together into a cohesive, heartwarming dish.

I also love how incredibly easy this recipe is to throw together. With just one skillet and minimal prep, it’s perfect for busy weeknights when I want something nourishing without spending ages in the kitchen. Plus, it’s such a crowd-pleaser — I’ve served it for family dinners, casual get-togethers, and even holiday potlucks. Its simplicity combined with delicious layers of taste really sets it apart and makes me want to share it again and again.

Ingredients You’ll Need

The image shows a white skillet filled with layers of cooked ground meat mixed with diced green and red bell peppers, and onions. On top of the mixed ingredients, there are small piles of yellow minced garlic, white salt, black pepper, and a brown ground spice. A black spatula is resting in the skillet on the right side. The skillet is placed on a white marbled surface. photo taken with an iphone --ar 4:5 --v 7

The beauty of this recipe is in its straightforward, wholesome ingredients. Each one plays an essential role in building the casserole’s wonderful taste, texture, and vibrant color.

Ground beef: I prefer ¾ pound for the perfect meatiness that’s not too heavy and cooks up nicely.
Chopped bell peppers: Using 2 cups adds sweet crunch and bright green and red hues that make the dish pop.
Finely chopped onion: Half a medium onion keeps the flavor savory and aromatic without overpowering the other ingredients.
Minced garlic: Two cloves give a subtle kick of garlicky warmth that I never skip.
Salt: Three-quarters teaspoon balances and enhances all the flavors.
Dried oregano: Half a teaspoon adds a touch of earthy herbaceousness.
Pepper: A quarter teaspoon provides a gentle heat to complement the spices.
Cumin: Just a quarter teaspoon introduces a smoky depth that makes this casserole unique.
Low-sodium chicken broth: Two cups create the perfect cooking liquid for tender rice and add subtle savory notes.
Tomato salsa: One cup brings freshness and slightly tangy flavor that brightens the whole dish.
Long-grain white rice: One cup, rinsed well, ensures fluffy, separate grains that absorb all those delicious juices.
Shredded mozzarella cheese: One cup melted on top offers that irresistible gooey, melty finish.

Directions

Step 1: Heat a large skillet over medium-high heat, then crumble in the ground beef. Cook it while stirring occasionally until it just starts to brown and releases its flavorful juices.

Step 2: Add the chopped bell peppers and finely chopped onion to the skillet. Continue cooking for about 5 minutes, stirring frequently, until the peppers are crisp-tender and the onions become translucent.

Step 3: Stir in the minced garlic, salt, dried oregano, pepper, and cumin. Let it cook for one minute so all the spices release their aroma and blend together beautifully.

Step 4: Pour in the low-sodium chicken broth, then use a wooden spoon to scrape any browned bits off the bottom of the pan — this adds so much extra flavor. Stir in the tomato salsa until everything is well combined.

Step 5: Rinse the long-grain white rice thoroughly under cold water until the water runs clear, then drain. Add the rinsed rice to the skillet and stir it into the mixture to evenly distribute.

Step 6: Bring the skillet to a gentle simmer, then cover it with a tight-fitting lid. Reduce the heat to medium-low and let it cook for 15 to 20 minutes until the rice is fully tender and has absorbed most of the liquid.

Step 7: Once the rice is cooked, sprinkle the shredded mozzarella cheese evenly over the top. Cover the skillet again and let the cheese melt for a few minutes before serving.

Servings and Timing

This Stuffed Pepper Casserole Recipe yields 6 hearty servings, making it perfect for a family dinner or meal prep for the week ahead. The prep time is about 10 minutes, mostly for chopping the vegetables and rinsing the rice. Cooking time is approximately 25 minutes from start to finish, including the simmering and melting of the cheese, for a total time of roughly 35 minutes. There’s no resting time needed beyond letting the cheese melt, so you can enjoy it fresh and warm straight from the skillet.

How to Serve This Stuffed Pepper Casserole Recipe

A white plate with a blue rim holds a vibrant dish of cooked rice mixed with orange-brown sauce, small green and red bell pepper pieces, and light brown ground meat. On top of the mixture are three patches of melted, creamy white cheese sprinkled with green herbs, adding a soft, slightly bubbly texture. The plate sits on a white marbled surface with a silver spoon resting on the side, partially inside the dish, while a white and blue striped cloth is nearby. photo taken with an iphone --ar 4:5 --v 7

When I serve this casserole, I like to pair it with simple, fresh sides that complement without competing. A crisp green salad dressed in lemon vinaigrette or a handful of roasted cherry tomatoes adds a bright, refreshing contrast. For something warm, garlic bread or crusty baguette is perfect to scoop up any leftover sauce.

For presentation, I love to garnish with a sprinkle of freshly chopped parsley or a few slivers of green onion to brighten the colors and add a fresh note. Serving it directly from the skillet keeps things cozy and casual, but it also plates beautifully on simple white dishes for a more polished meal.

To drink, I usually reach for a light red wine like Pinot Noir or a chilled sparkling water with a squeeze of lime to refresh the palate. This casserole works wonderfully for weeknight dinners, casual gatherings, or even weekend family meals. I recommend serving it hot or warm to enjoy that melty cheese texture and the fragrant aromas at their best.

Variations

One of my favorite things about this Stuffed Pepper Casserole Recipe is how easy it is to customize. If ground beef isn’t your thing, I’ve swapped in ground turkey or even plant-based meat substitutes with great results, making it lighter or vegan-friendly. For a vegetarian twist, you can replace meat entirely with sautéed mushrooms and lentils for heartiness.

If you need to make it gluten-free, just double-check your salsa ingredients and broth labels, but otherwise, it’s already safe for gluten-free diets. Flavor-wise, I sometimes add a pinch of smoked paprika or a dash of hot sauce to amp up the heat and depth. Using a different cheese, like pepper jack or a sharp cheddar, also shifts the casserole’s personality deliciously.

For a different cooking method, I’ve tried transferring the mixture into a baking dish after step 5, topping with cheese, and baking at 350°F for 20 minutes instead of stovetop simmering. It adds a lovely crusty finish to the casserole that’s really satisfying, especially when feeding a crowd.

Storage and Reheating

Storing Leftovers

When I have leftovers, I let the casserole cool to room temperature before transferring it into an airtight container. It keeps beautifully in the refrigerator for up to 4 days, maintaining texture and flavor. Using glass containers with tight lids works best to keep the cheese moist and the rice fluffy without drying out.

Freezing

This dish freezes well if you want to prep ahead or save portions for later. I recommend dividing it into single or double portions before freezing in freezer-safe containers or heavy-duty freezer bags. It can stay frozen for up to 3 months. Just make sure to label with the date so you don’t lose track!

Reheating

To reheat, I prefer warming leftovers gently in a skillet over medium-low heat, covering the pan to help the cheese melt evenly again. Alternatively, reheating in the microwave works fine—just cover and heat in short 1-minute bursts to avoid drying out the rice. Avoid reheating on high heat too long as it can toughen the meat and dry the dish out. Adding a small splash of broth or water can help restore moisture and keep everything tender.

FAQs

Can I make this recipe ahead of time?

Absolutely! I often prepare the skillet filling up to step 5 and refrigerate it overnight. When I’m ready to eat, I warm it up and finish with the cheese melt. It even tastes better the next day as the flavors meld further.

Is this recipe suitable for freezing?

Yes, this casserole freezes very well. Portion it into individual containers before freezing, and thaw overnight in the fridge for best results before reheating gently.

Can I use brown rice instead of white rice?

You can swap brown rice, but expect to increase the cooking time by about 10-15 minutes and add a bit more broth, since brown rice takes longer to cook and absorbs more liquid.

What can I use instead of mozzarella cheese?

Cheddar, Monterey Jack, or even pepper jack cheese are great alternatives depending on your flavor preference. For a dairy-free option, try a vegan cheese that melts well for that gooey texture.

How spicy is this casserole?

This recipe is mild with just a hint of warmth from the cumin and pepper, making it family-friendly. If you prefer more heat, adding crushed red pepper flakes or a dash of hot sauce can easily kick up the spice level.

Conclusion

I truly hope you give this Stuffed Pepper Casserole Recipe a try soon. It’s one of those dishes that feels like a labor of love every time I make it, yet comes together so simply. Whether you’re feeding family, friends, or just treating yourself, its flavors never fail to bring comfort and smiles. Happy cooking and enjoy every delicious bite!