Stuffed Pepper Casserole

If you’re craving a cozy, hearty meal that’s both easy to make and bursting with flavor, this stuffed pepper casserole is your new go-to. This dish takes all the bold, savory goodness of traditional stuffed peppers and simplifies it into a single-pan wonder. With tender rice, seasoned ground beef, melty cheese, and colorful bell peppers, it’s perfect for weeknights, family gatherings, or meal prepping.

This recipe eliminates the hassle of stuffing individual peppers while still delivering the comforting essence of the classic. Plus, it’s incredibly flexible, allowing for various substitutions to suit your preferences or dietary needs. Whether you’re a fan of ground beef, looking for a one-pot casserole solution, or exploring new easy weeknight dinner ideas, you’ll love how everything comes together seamlessly.

Bell peppers not only add a sweet and slightly smoky flavor, but they’re also packed with nutrients. According to Wikipedia’s guide to bell pepper nutrition, these vibrant veggies are loaded with vitamins A and C, making them a great addition to your weekly menu. Similarly, learning how to cook ground beef properly (as detailed on Wikipedia’s ground beef page) can elevate your cooking and help lock in flavor while ensuring food safety.

💖 Why you’ll love this stuffed pepper casserole

There are a lot of reasons this stuffed pepper casserole stands out from typical casserole dishes:

• One-pan convenience: Everything is cooked in one skillet, which means fewer dishes and faster cleanup.

• Family-friendly flavors: Melty cheese, rich tomato, and beefy rice are kid-approved.

• Perfect for meal prep: Makes great leftovers and freezes well.

• Nutritious yet indulgent: Balanced with protein, vegetables, and gooey cheese.

This recipe is also popular in Pinterest’s top boards like family dinner casseroles and easy weeknight dinners, highlighting its appeal as a tried-and-true classic. You’ll find it’s especially appreciated by those looking to simplify dinner without sacrificing taste.

🧄 Key ingredients breakdown

Let’s break down what makes this dish so satisfying. The ingredients are simple yet purposeful, each bringing its own layer of texture and flavor to the mix.

🍖 Hearty base

• 1 pound ground beef
  Rich in flavor and protein, ground beef gives the dish a savory foundation. Learn more about ground beef cooking tips for safety and taste.

• 2 bell peppers, chopped
  A must-have for that stuffed pepper essence, these bring natural sweetness and vibrant color.

• 1 onion, finely chopped
  Adds aromatic depth and balances the richness of the beef.

• 3 cloves garlic, minced
  Garlic enhances all the flavors and builds complexity in the base.

🌿 Flavor builders

• 1 tablespoon Worcestershire sauce
  Brings umami depth and complexity. According to Wikipedia, it’s a fermented sauce rich in tang and savory flavor.

• 1 tablespoon Italian seasoning
  A flavorful mix of oregano, thyme, rosemary, and basil. Learn more about Italian seasoning blends and how they enhance dishes like casseroles.

• 1 teaspoon salt & ½ teaspoon black pepper
  Classic seasoning duo to balance and enhance all other flavors.

🍅 Liquid and rice

• 15 oz low-sodium beef broth
  Adds moisture and a savory base to cook the rice evenly.

• 15 oz canned diced tomatoes
  Provides tanginess and texture that’s key to replicating the classic stuffed pepper experience.

• ¾ cup uncooked long-grain white rice
  The main starch component that absorbs all the flavors during cooking. For more on how rice behaves during cooking, see rice absorption techniques.

🧀 Cheesy goodness

• ¾ cup shredded mozzarella cheese
  Known for its meltiness and mild flavor.

• ¾ cup shredded cheddar cheese
  Brings sharper, bolder notes that pair perfectly with beef and tomato.

Together, these ingredients make a stuffed pepper casserole that’s both nostalgic and modern. It’s also widely featured on Pinterest boards like stuffed pepper casserole inspiration thanks to its flexibility and flavor.

🔪 How to make stuffed pepper casserole – step-by-step guide

This recipe is incredibly straightforward and ideal for cooks at any level. You don’t need a ton of prep time, and it all comes together in one skillet.

👩‍🍳 Step-by-step cooking instructions:

1. Brown the ground beef in a large skillet over medium heat. Break it apart as it cooks until it’s no longer pink and beginning to brown.

2. Add the onions and bell peppers to the skillet. Sauté for 5–10 minutes until they begin to soften and release their aroma.

3. Stir in the garlic and cook for another 1–2 minutes until fragrant. Don’t let the garlic burn!

4. Add the Worcestershire sauce, Italian seasoning, salt, and pepper to build depth of flavor.

5. Pour in the diced tomatoes, beef broth, and uncooked rice. Stir everything thoroughly, making sure the rice is submerged.

6. Bring the mixture to a boil, then reduce the heat to low, cover, and simmer for 20 minutes. Stir once halfway through to prevent sticking.

7. Check the rice for doneness. Once tender and most of the liquid is absorbed, remove from heat.

8. Stir in half of the mozzarella and cheddar cheese for creamy richness.

9. Sprinkle the remaining cheese on top. You can either cover the skillet to melt it or place the skillet under the broiler if it’s oven-safe for a bubbly top.

10. Serve hot and enjoy!

💡 Cooking tips and tricks

To get the most out of your stuffed pepper casserole, keep these tips in mind:

• Use a deep, heavy-bottomed skillet to ensure even cooking and prevent burning.

• Stir halfway through simmering to avoid rice sticking to the bottom.

• Broil the final cheese layer for a golden, bubbly topping if using an oven-safe skillet.

• Keep the lid on while simmering to trap steam and cook the rice properly.

• Let the casserole sit for 5 minutes before serving—it thickens slightly and enhances flavor.

This dish also gets creative on Pinterest boards like one-pan dinner ideas, where home cooks experiment with different cheeses, proteins, and even grains.

🌶️ Variations and substitutions

One of the best things about this recipe is its flexibility. Here are some variations to tailor it to your tastes or dietary needs:

🍗 Protein swaps

• Ground turkey or chicken for a leaner option

• Turkey bacon can be added for a smoky twist, chopped and sautéed with the onions

• Lentils or plant-based crumbles to make it vegetarian

🍚 Rice alternatives

• Brown rice for extra fiber (increase cook time by 10–15 minutes)

• Quinoa or cauliflower rice for low-carb options

🧀 Dairy-free version

• Use dairy-free cheese shreds that melt well (like mozzarella-style vegan blends)

• Omit cheese entirely and add extra seasonings like nutritional yeast

🥕 Add extra vegetables

• Corn

• Zucchini

• Mushrooms

• Spinach (stirred in at the end)

These customizations are frequently showcased in Pinterest’s top boards like easy weeknight dinners, offering delicious inspiration for every palate.

🍽️ Serving suggestions

Round out your meal with sides that complement the hearty and cheesy profile of this casserole:

• Simple green salad with vinaigrette to lighten the plate

• Garlic bread or crusty rolls for dipping

• Sour cream or Greek yogurt for a cool contrast

• Hot sauce or chili flakes for spice lovers

This makes it ideal for potlucks or weekday family dinners that feel comforting yet complete.

🧊 Storage and reheating tips

This stuffed pepper casserole is excellent for leftovers and perfect for freezing:

• Refrigerator: Store in airtight containers for up to 4 days.

• Freezer: Portion out and freeze for up to 3 months. Use freezer-safe bags or containers.

• Reheating: Microwave with a splash of broth to prevent drying. Or reheat on the stove over low heat.

• To re-crisp cheese: Pop under the broiler for a few minutes after reheating.

Knowing how to reheat it properly ensures you enjoy it just as much the second time around.

⏱️ Can you make it ahead of time?

Absolutely! This dish is a dream for meal preppers and busy families.

• Make the whole recipe, let it cool, and refrigerate or freeze.

• Prepare components in advance, such as chopping veggies or browning beef, and assemble later.

• Store in a casserole dish and bake when ready to eat if you prefer an oven finish.

❓ Frequently asked questions (FAQs)

What kind of rice is best for stuffed pepper casserole?

Long-grain white rice is ideal for this recipe because it cooks evenly and soaks up the flavors. If using brown rice, increase the simmering time by 10–15 minutes and add a bit more broth. Learn more about how rice absorbs flavor on Wikipedia’s rice cooking page.

Can I make this casserole vegetarian?

Yes! Simply replace the beef with:

• Cooked lentils

• Plant-based meat crumbles

• Chickpeas or black beans for extra protein

Can I bake this instead of cooking on the stove?

Definitely. Prepare the mixture on the stovetop, then transfer to a greased casserole dish. Bake uncovered at 375°F for 20–25 minutes or until the top is bubbly and golden.

How do I make it spicier?

Add spice by:

• Stirring in chopped jalapeños

• Using spicy Italian sausage instead of beef

• Adding cayenne pepper or red pepper flakes

Can I double the recipe for a crowd?

Yes. Use a larger Dutch oven or split between two pans. Increase cooking time slightly and stir frequently to ensure even cooking.

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