Stuffed Pepper Casserole

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Stuffed Pepper Casserole brings all the comfort of classic stuffed peppers, but in a no-fuss, one-pan bake that’s perfect for busy weeknights. With layers of seasoned ground beef, fluffy rice, sweet bell peppers, and gooey melted cheese, every bite is hearty and satisfying. It’s a dinner that feels like home, without all the work of stuffing individual peppers.

What makes this dish especially great is how adaptable it is. You can use up leftover rice, swap out the ground beef for turkey, or spice things up with jalapeños. It’s also a fantastic make-ahead meal, and the leftovers are even better the next day. Whether you’re feeding a family or meal-prepping for the week, this casserole deserves a spot in your rotation.

Why You’ll Love This Stuffed Pepper Casserole

• It’s an easy one-pan meal with minimal prep.
• A cozy, cheesy dinner that feeds a crowd.
• Naturally gluten-free and can be adapted for low-carb diets.
• Stores well and tastes even better the next day.

What Kind of Rice Works Best?

Long-grain white rice works beautifully in this casserole because it stays fluffy and doesn’t clump. If you prefer, you can use jasmine or brown rice, though brown rice will need a longer cooking time and slightly more liquid. Precooked rice works in a pinch—just reduce the liquid by half and adjust the simmering time.

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Ingredients for the Stuffed Pepper Casserole

Ground Beef – A classic, hearty base for the casserole that delivers bold flavor.

Bell Peppers – A mix of red, green, and yellow bell peppers brings sweetness, crunch, and color to the dish.

White Rice – The starchy component that absorbs flavor and brings everything together.

Onion – Sautéed with beef for a sweet and savory aromatic base.

Garlic – Adds depth and warmth to the dish.

Tomato Sauce – Binds the meat and rice with a tangy richness.

Beef Broth – Infuses the rice with meaty flavor while it cooks.

Italian Seasoning – A blend of herbs that elevates the casserole’s overall flavor.

Salt and Pepper – Essential for balancing and enhancing every bite.

Shredded Cheese – A melty topping that seals the casserole with a gooey, golden crust.

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How To Make the Stuffed Pepper Casserole

Step 1: Brown the Ground Beef

In a large skillet or oven-safe pan, cook 1 lb ground beef over medium heat until fully browned, about 6-7 minutes. Drain excess fat.

Step 2: Sauté the Vegetables

Add 1 diced onion and 3 cloves of minced garlic to the pan. Cook for 2-3 minutes until fragrant. Then, add 2 cups of chopped bell peppers (a mix of colors). Sauté for 4-5 minutes until they begin to soften.

Step 3: Stir in Rice and Sauce

Add 1 cup uncooked white rice to the skillet. Stir in 2 cups beef broth, 1 can (15 oz) tomato sauce, 1 teaspoon Italian seasoning, ½ teaspoon salt, and ¼ teaspoon black pepper. Mix everything until well combined.

Step 4: Simmer Until Rice is Tender

Cover and reduce heat to low. Simmer for about 20 minutes, or until rice is tender and most of the liquid is absorbed.

Step 5: Top with Cheese and Bake

Preheat your oven to 375°F. Sprinkle 1 ½ cups shredded mozzarella or cheddar cheese evenly on top. Bake uncovered for 10-12 minutes, or until the cheese is melted and bubbly.

Step 6: Garnish and Serve

Let the casserole rest for 5 minutes before serving. Garnish with chopped parsley for a fresh touch.

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How to Serve This Cozy Casserole

This stuffed pepper casserole yields 6 hearty servings, perfect for a family dinner. Serve it with a side salad, garlic bread, or a dollop of sour cream for extra indulgence. It’s a complete meal on its own, but works great with sides too.

How to Store and Reheat Leftovers

Leftovers can be stored in an airtight container in the fridge for up to 4 days. To reheat, microwave individual portions for 1-2 minutes, or warm in a 350°F oven until heated through. For freezing, let the casserole cool completely, then freeze in portions or in the baking dish for up to 2 months. Thaw in the fridge overnight before reheating.

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Frequently Asked Questions

Can I use brown rice instead of white rice?
Yes! Brown rice is a wholesome substitute but will require 10-15 more minutes of cooking and extra broth.

Can this casserole be made ahead of time?
Absolutely. Assemble the casserole up to the baking step and refrigerate up to 24 hours. Add cheese and bake when ready.

What other protein can I use?
Ground turkey, chicken, or even plant-based meat alternatives work well in this recipe.

Can I make it spicier?
For heat lovers, add diced jalapeños with the peppers or a pinch of red pepper flakes.

Is this recipe freezer-friendly?
Yes! Store in a freezer-safe container for up to 2 months. Reheat from frozen or thaw overnight for best results.

Want More Casserole Ideas?

If you love this cheesy stuffed pepper casserole, you’ll probably enjoy these cozy one-pan favorites:

• Runza Casserole
• Old Fashioned Goulash
• Creamy Baked Onions with Asiago Cheese
• Beef and Potato Casserole
• Cheesy Creamed Spinach

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📌 Save this recipe to your Pinterest dinner board so you can come back to it any time.

And let me know in the comments how yours turned out. Did you go spicy or keep it mild? Try a different cheese? I’m always inspired by your twists!

Looking for more recipe inspo? Check out my daily food creations on Life With Livia.

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