If you love the classic flavors of stuffed peppers but want a fuss-free, all-in-one dish packed with hearty goodness, this Stuffed Pepper Casserole Recipe is about to become your new go-to comfort meal. It captures all the vibrant tastes of bell peppers, ground beef, and melted cheese layered with perfectly cooked rice, all baked together to create a warm, inviting casserole that’s both satisfying and oh-so-delicious. Whether you’re cooking for family or meal prepping for the week, this recipe promises simplicity without sacrificing flavor, making it a total winner in any kitchen.

Ingredients You’ll Need

The image shows a white marbled surface with several clear glass and white dishes arranged in a group, each containing different ingredients. There are two clear glass bowls at the back filled with shredded cheese in one and chopped red and green bell peppers in the other. In front of these, there is a glass bowl with chunky tomato sauce, a small round clear bowl with a dark brown liquid, and another clear bowl with chopped white onions. To the side, there is a clear glass measuring cup filled with brown broth. In the front row, there is a red measuring cup piled with white rice, a small square white dish with minced garlic, and a white ramekin filled with a creamy white substance. To the left, there is a packaged portion of raw ground meat resting on the surface. The photo taken with an iphone --ar 4:5 --v 7

The ingredients list for this Stuffed Pepper Casserole Recipe is refreshingly straightforward, yet each item plays an essential role to build that rich, satisfying taste and inviting texture you crave. From the fresh bell peppers adding a pop of color to the tender rice soaking up all the savory juices, every component blends seamlessly to create a dish that’s as balanced as it is delicious.

Olive oil, 2 tsp: Provides a smooth base for sautéing onions and peppers, enhancing their natural flavors.

Onion, 1 diced: Adds a subtle sweetness and depth to the casserole’s savory foundation.
Green bell pepper, 1 diced: Brings bright, slightly grassy notes and crunchy texture.
Red bell pepper, 1 diced: Introduces a touch of natural sweetness and vibrant color.

Lean ground beef, 1 lb: The hearty protein that makes this dish truly filling and flavorful.
Garlic, 4 cloves minced: Infuses an aromatic punch that elevates the entire casserole.
Tomato paste, 2 tbsp: Concentrates the tomato flavor for a rich, savory base.

Italian seasoning, 1 tbsp: A fragrant herb blend that layers in warm, earthy notes.
Paprika, 1 tsp: Adds gentle smokiness and beautiful color.
Cayenne, pinch: Just enough to awaken the palate with a mild kick.
Salt & pepper, to taste: Essential seasonings to balance and enhance all flavors.

Fire roasted diced tomatoes, 14 oz can: Offers a smoky, robust tomato essence and hearty texture.
Beef broth, 2 cups: Keeps the rice moist and imparts rich savoriness.
Long grain rice, 1 cup: Absorbs the flavorful juices and creates a satisfying base.

Sour cream, ½ cup (optional): Adds a creamy tang that softens the edges of spice and acidity.
Worcestershire sauce, 1 tbsp: Brings a complex, umami punch that deepens the beefy flavor.
Shredded Monterey Jack cheese, 2 cups (divided): Melts beautifully, balancing spice and moisture; great with Pepper Jack or Cheddar as alternatives.

Chopped parsley, optional: For a fresh, herbaceous finish that brightens the casserole.

How to Make Stuffed Pepper Casserole Recipe

The image shows a white pan on a white marbled surface, containing a mix of cooked ground meat, chopped green onions, red bell peppers, and white onions. The ingredients are layered evenly inside the pan, with the ground meat forming the main base, scattered bits of red bell peppers and chopped green onions brightly spread across the top, and finely chopped white onions clustered in one section. A wooden spoon rests inside the pan, partly covered by the mixture, giving a sense of ongoing cooking. Photo taken with an iphone --ar 4:5 --v 7

Step 1: Sauté the Vegetables

Start by heating the olive oil in a large oven-safe braiser over medium to medium-high heat. Toss in the diced onion along with both the green and red bell peppers, cooking them gently for about 3 to 5 minutes until they soften just enough to release their sweet aromas without losing their vibrant color. This creates the crucial vegetable base that makes the casserole taste fresh and hearty.

Step 2: Brown the Ground Beef and Garlic

Add the lean ground beef to the softened veggies, along with the minced garlic. Using a wooden spatula, break up the meat as it cooks for around 3 minutes, ensuring every bite ends up tender and well-seasoned. The garlic will start to perfume the mixture, taking the dish’s flavor profile up a notch.

Step 3: Build the Flavor Base

Next, stir in the tomato paste, Italian seasoning, paprika, cayenne, and a generous pinch of salt and pepper. Allow this blend to cook for 1 to 2 minutes so the spices bloom and combine, infusing the beef and veggies with rich, layered complexity. Then pour in the can of fire-roasted diced tomatoes, gently folding everything together to distribute the smoky tomato flavor evenly throughout.

Step 4: Combine Liquids, Rice, and Cheese

Pour in the beef broth, add the rice, sour cream (if using), and Worcestershire sauce, then stir in 1 cup of the shredded Monterey Jack cheese. This mixture will start to come together with a creamy, cheesy texture that makes this Stuffed Pepper Casserole Recipe irresistibly delicious. Once combined, remove the pan from heat to prepare for baking.

Step 5: Bake to Perfection

Cover the braiser with a lid or aluminum foil and pop it in the preheated oven at 350 Fahrenheit. Bake for about 30 minutes, or until the rice is tender and most of the liquid is absorbed. If you don’t have an oven-safe braiser, no worries—transfer the filling to a casserole dish before covering. After baking, remove the cover, sprinkle the remaining cheese evenly over the top, and broil just long enough for the cheese to melt and turn that perfect golden brown.

Step 6: Rest and Garnish

Once out of the oven, let the casserole rest for about 5 minutes so all the flavors meld together beautifully and the surface firms up a little. Before serving, a sprinkling of fresh chopped parsley provides a lovely, fresh contrast that brightens up the entire dish.

How to Serve Stuffed Pepper Casserole Recipe

Garnishes

A sprinkle of chopped parsley is a classic choice to add freshness and color, but you can also consider a dollop of sour cream or a few slices of fresh avocado if you want to play with creaminess and texture. These toppings bring harmonious cool notes to balance the warmth of the casserole.

Side Dishes

This casserole is wonderfully versatile as a complete meal, but if you want to round it out, serve alongside a crisp green salad or roasted Brussels sprouts. A simple garlic bread or a warm baguette can also make a fantastic pairing, perfect for soaking up any leftover sauce from the dish.

Creative Ways to Present

For dinner parties, consider serving portions in individual ramekins or scoop the casserole into small bell pepper halves for a fun, themed presentation. This adds some visual interest and a playful touch while keeping every bite packed with those classic stuffed pepper flavors.

Make Ahead and Storage

Storing Leftovers

Once cooled, transfer leftovers to an airtight container and store them in the refrigerator for up to 3 to 4 days. The flavors tend to deepen overnight, making reheated servings even more comforting and delicious.

Freezing

Stuffed Pepper Casserole Recipe freezes beautifully. Portion out into freezer-safe containers and freeze for up to 3 months. Be sure to thaw overnight in the refrigerator for best texture when reheating.

Reheating

To reheat, warm individual portions in a microwave until piping hot or place covered in a preheated oven at 350 Fahrenheit for about 15-20 minutes. Adding a sprinkle of cheese on top before reheating helps maintain that melty, cheesy goodness.

FAQs

Can I use different types of meat in this Stuffed Pepper Casserole Recipe?

Absolutely! While lean ground beef is traditional and flavorful, you can swap in ground turkey, chicken, or even a plant-based ground meat for variations that suit your taste or dietary preferences.

Is it necessary to use sour cream in the casserole?

Sour cream is optional, but it lends a lovely creaminess and slight tang that balances the spices and acidity. If you prefer, you can omit it or substitute with Greek yogurt for a lighter option.

What if I don’t have an oven-safe braiser?

No problem! Simply cook the filling on the stove as directed, then transfer the mixture to a casserole dish before baking and broiling. Just make sure the dish is covered properly while baking to retain moisture.

Can I make this recipe vegetarian?

Yes, you can replace ground beef with hearty vegetables like mushrooms, lentils, or a meat substitute. Consider using vegetable broth instead of beef broth to keep it vegetarian-friendly while still packed with flavor.

How spicy is this Stuffed Pepper Casserole Recipe?

It has a gentle warmth thanks to the paprika and pinch of cayenne, but it’s not overwhelmingly spicy. You can always adjust the cayenne to your preference or leave it out altogether for a milder dish.

Final Thoughts

This Stuffed Pepper Casserole Recipe is like a warm hug on a plate—a perfect blend of flavors, textures, and colors that feels both familiar and fresh. It’s easy to make, generously portioned, and endlessly satisfying. Give this recipe a try, and I’m confident it’ll soon be a cherished staple in your home just like it is in mine!