One Pan Stuffed Pepper Casserole Recipe

So you love stuffed peppers… but the idea of hollowing out peppers, stuffing them carefully, and baking them forever sounds like a lot of work. Yeah, same here.

Good news: this casserole gives you all the classic stuffed pepper flavor—savory beef, rice, tomatoes, and sweet peppers—without the annoying step of stuffing anything. Everything cooks together in one pan, which means fewer dishes and way less effort. Lazy cooking win. 🙂

Why This Recipe Is Awesome

First of all, it’s a one-pan meal, which automatically makes life easier. You cook everything in one skillet, so cleanup is basically painless.

Second, it’s packed with classic comfort-food flavor. You get juicy ground beef, tender rice, sweet bell peppers, and rich tomato sauce all mingling together like they’re at a delicious party.

It’s also super flexible. Got extra veggies? Toss them in. Want it spicier? Add chili flakes.

And honestly, it’s basically stuffed peppers for people who don’t feel like stuffing peppers. IMO, that’s genius.

Ingredients You’ll Need

• 1 pound ground beef
• 1 tablespoon olive oil
• 1 medium onion, diced
• 3 bell peppers, chopped (any color works)
• 3 cloves garlic, minced
• 1 cup uncooked long-grain rice
• 1 can (15 oz) diced tomatoes
• 1 can (8 oz) tomato sauce
• 2 cups beef broth
• 1 teaspoon Italian seasoning
• ½ teaspoon paprika
• ½ teaspoon salt
• ½ teaspoon black pepper

Optional but recommended:

• 1 cup shredded cheddar or mozzarella cheese
• Fresh parsley for garnish
• Red pepper flakes if you like heat

Step-by-Step Instructions

1. Heat the pan.
Place a large skillet or deep pan over medium heat. Add olive oil and let it warm up.

2. Brown the ground beef.
Add the ground beef to the pan and cook until browned. Break it apart with a spoon as it cooks.

3. Add the onion and peppers.
Stir in the diced onion and chopped bell peppers. Cook for about 4–5 minutes until they soften slightly.

4. Toss in the garlic.
Add minced garlic and cook for about 30 seconds. Your kitchen should smell amazing right now.

5. Add rice and seasonings.
Stir in the uncooked rice, Italian seasoning, paprika, salt, and pepper. Mix everything well.

6. Pour in the liquids.
Add diced tomatoes, tomato sauce, and beef broth. Stir everything together so the rice is evenly distributed.

7. Simmer the casserole.
Bring the mixture to a gentle simmer. Cover the pan and cook for about 18–20 minutes, stirring occasionally.

8. Add cheese (optional but highly recommended).
Sprinkle shredded cheese over the top and let it melt for a few minutes.

9. Garnish and serve.
Top with fresh parsley and serve warm. Congrats—you just made stuffed peppers the easy way.

Common Mistakes to Avoid

Using instant rice when the recipe calls for regular rice. The cooking time will go completely rogue.

Not stirring occasionally. Rice can stick to the bottom if ignored for too long.

Adding too little liquid. Rice needs moisture to cook properly.

Overcooking the peppers. You want them tender, not sad and mushy.

Skipping the seasoning. Trust me, a little seasoning makes a huge difference.

Alternatives & Substitutions

No ground beef? Use ground turkey or chicken.

Want a vegetarian version? Swap the meat for black beans or lentils.

Trying to eat low-carb? Replace rice with cauliflower rice (add it near the end).

Prefer brown rice? Totally doable—just add a bit more broth and cook longer.

Want extra veggies? Mushrooms, zucchini, or corn work great.

FYI, adding smoked paprika gives the casserole an extra layer of flavor that’s ridiculously good.

FAQ (Frequently Asked Questions)

Can I make this casserole ahead of time?
Absolutely. Store it in the fridge and reheat when ready to eat.

Can I freeze stuffed pepper casserole?
Yes! Freeze it in airtight containers for up to three months.

What type of rice works best?
Long-grain white rice cooks the most evenly in this recipe.

Can I bake it instead of cooking on the stove?
Yes. Transfer everything to a baking dish and bake at 375°F for about 30 minutes.

How do I make it spicier?
Add chili flakes, hot sauce, or diced jalapeños.

Can I use leftover rice instead of uncooked rice?
Yes. Reduce the broth slightly and stir the cooked rice in at the end.

Does it taste like traditional stuffed peppers?
Pretty much! You get the same flavor combo without the extra work.

Final Thoughts

This One Pan Stuffed Pepper Casserole is basically the lazy genius version of stuffed peppers. You get all the comforting flavor—savory beef, sweet peppers, tomato sauce, and fluffy rice—without spending half your evening assembling peppers like tiny edible bowls.

It’s simple, satisfying, and perfect for busy weeknights. Plus, the leftovers taste even better the next day.

So grab a skillet, toss everything in, and enjoy a dinner that feels homemade… without feeling like a kitchen marathon. Honestly, that’s a win.