One-Pan Stuffed Pepper Casserole is the perfect combination of comfort, convenience, and hearty flavor. It brings together seasoned ground beef, colorful bell peppers, tender rice, rich tomato sauce, and melted cheddar cheese in one satisfying dish. Instead of preparing traditional stuffed peppers individually, this easy casserole delivers all those familiar flavors in a simple one-pan format.

This recipe is especially helpful for busy weeknights when you want a filling homemade dinner without complicated preparation or a pile of dishes afterward. The savory beef pairs beautifully with the sweetness of the bell peppers, while the tomato sauce keeps the rice tender and flavorful. Finished with golden, melted cheddar, every serving is warm, cheesy, and comforting.

If you’re looking for easy high-protein dinner recipes, family-friendly casseroles, or delicious dinner recipes that work well for meal prep, this One-Pan Stuffed Pepper Casserole is an excellent choice. It is hearty enough to satisfy the whole family while remaining simple enough to become part of your regular dinner rotation.

Why You’ll Love This Recipe

There are plenty of reasons to make this One-Pan Stuffed Pepper Casserole part of your weekly meal plan. First, everything comes together in one oven-safe pan, making it much easier than traditional stuffed peppers. You get the same combination of beef, peppers, rice, tomato, and cheese without having to prepare and fill individual peppers.

Another reason to love this recipe is its versatility. You can easily adjust the seasonings, switch the type of cheese, or use ground turkey or chicken instead of beef. The colorful bell peppers add freshness and texture, while the rice makes the casserole hearty and satisfying. It is also a convenient option for busy families because leftovers can be portioned for quick lunches or dinners.

Most importantly, this casserole offers the kind of comforting flavor people look for in homemade meals. The browned beef adds savory depth, the tomato sauce brings richness, and the melted cheddar creates a delicious cheesy finish. It is simple, cozy, and practical all at once.

Health Benefits of This Recipe

This casserole combines several ingredients that can contribute to a satisfying and balanced meal. Ground beef provides protein, while the colorful bell peppers add vegetables and important nutrients. Using green, red, and orange peppers also gives the casserole a variety of flavors, from slightly earthy to naturally sweet.

Bell peppers are particularly useful for adding vitamin C, antioxidants, and some dietary fiber to a meal. The tomato sauce contributes additional nutrients and gives the dish its rich base, while rice provides carbohydrates that make the casserole more filling. Cheddar cheese adds protein and calcium along with the creamy flavor that makes this dish feel indulgent.

For an even lighter variation, you can choose lean ground beef or substitute ground turkey or chicken. You can also increase the amount of vegetables by adding extra bell peppers, zucchini, mushrooms, or leafy greens. These simple adjustments allow you to customize the casserole according to your personal meal-planning goals.

What Makes This Recipe Dinner

A good dinner should be satisfying, flavorful, and practical, and this One-Pan Stuffed Pepper Casserole checks all three boxes. It combines protein from the ground beef and cheese with vegetables from the bell peppers and carbohydrates from the rice, creating a hearty meal without requiring several separate dishes.

The combination of ingredients also gives the casserole a satisfying balance of textures. The rice becomes tender and flavorful as it cooks with the tomato sauce and broth, while the beef adds a savory, hearty bite. The peppers provide a little texture and natural sweetness, and the melted cheddar brings everything together with a rich, creamy finish.

Because the entire meal is prepared in one pan, it is especially convenient for weeknight dinners. Serve it straight from the pan with a simple salad or roasted vegetable on the side, and you have a comforting homemade meal that requires very little additional work.

Tips & Variations

For the best flavor, give the ground beef enough time to brown properly before adding the other ingredients. Browning creates deeper savory flavors that carry throughout the casserole. It is also helpful to cut the bell peppers into fairly uniform pieces so they cook evenly and maintain a pleasant texture.

There are plenty of ways to customize this recipe. Ground turkey or chicken can replace the beef, while Monterey Jack, mozzarella, or pepper Jack can be used instead of cheddar. If you enjoy extra spice, add more cayenne or a pinch of crushed red pepper flakes. For a milder casserole, simply reduce the heat.

You can also add more vegetables if desired. Zucchini, mushrooms, corn, spinach, or extra bell peppers can all work well. Fresh parsley or green onions sprinkled over the finished casserole can add a fresh pop of color and flavor. Just remember that adding moisture-rich vegetables may slightly change the final texture.

How to Store & Meal Prep

This casserole is an excellent choice for meal prep because it stores well and can easily be divided into individual servings. Allow leftovers to cool before transferring them to airtight containers, then refrigerate them promptly. Individual portions make it especially convenient to grab a quick lunch or dinner during a busy week.

For longer storage, you can freeze the casserole in freezer-safe containers. Portioning it before freezing makes it easier to thaw only what you need. When you’re ready to eat, thaw frozen portions in the refrigerator when possible and reheat them until thoroughly hot.

When reheating, the rice may absorb some of the sauce as it sits. If the casserole seems slightly dry, add a small splash of beef broth or tomato sauce before reheating. Covering the dish while reheating can also help retain moisture and keep the rice tender.

Common Mistakes to Avoid

One common mistake is not allowing the ground beef to brown properly. If the beef is cooked too quickly without developing much color, the casserole may lack some of the deep savory flavor that makes it so delicious. Take a little extra time to brown the meat well before moving on to the next ingredients.

Another mistake is using a different type of rice without considering its cooking requirements. Rice varieties can differ in how much liquid they need and how long they take to cook. If you make a substitution, check the cooking requirements of that particular rice and adjust the liquid or cooking time when necessary.

Finally, avoid rushing the resting period or over-broiling the cheese. Letting the casserole rest after baking allows the rice and sauce to settle, making it easier to serve. When broiling the cheese, watch closely because it can brown very quickly. A short broiling time is usually enough to create a melted, golden topping.

One-Pan Stuffed Pepper Casserole

Recipe by samantha jenkins

0.0 from 0 votes

Course: DinnerCuisine: AmericanDifficulty: Easy

Servings

8

servings

Prep time

25

minutes

Cooking time

1

hour 

Calories

352

kcal

Additional Time:

10

mins

Total time

1

hour 

35

minutes

One-Pan Stuffed Pepper Casserole combines seasoned ground beef, colorful bell peppers, tender rice, tomato sauce, and melted cheddar for an easy, comforting high-protein dinner.

Ingredients

• 1 tablespoon olive oil

• 1 pound ground beef

• 1 onion, diced

• 2 tablespoons unsalted butter

• 3 cloves garlic, minced

• 2 teaspoons kosher salt

• 1 teaspoon freshly ground black pepper

• 1/2 teaspoon smoked paprika

• 1/2 teaspoon garlic powder

• 1 pinch cayenne

• 2 green bell peppers, seeded, cut into 1-inch pieces

• 1 red bell peppers, seeded, cut into 1-inch pieces

• 1 orange bell pepper, seeded, cut into 1-inch pieces

• 1 cup raw basmati or other long grain white rice

• 2 teaspoons Worcestershire sauce

• 2 cups tomato sauce or tomato puree

• 1 1/2 cups beef broth

• 6 ounces Cheddar cheese, shredded, divided

Instructions

• Preheat the oven to 375 degrees F (190 degrees C).
• Place an ovenproof pan over high heat, add olive oil, then the beef, and a big pinch of salt, and cook for about 1 minute, breaking the meat into smaller pieces. Add onions, and continue cooking, crumbling the meat, until it starts to brown and onions turn translucent, about 5 minutes. Brown the meat deeply for the best flavor.
• Reduce heat to medium-high, or to medium if the pan seems very hot, and add butter and garlic. Cook, stirring, until butter melts, about 1 minute. Add black pepper, paprika, garlic powder, and cayenne. Cook and stir for about 1 minute. Add bell peppers, and cook and stir until just heated through, 2 to 3 minutes.
• Add rice and stir until it is coated with the fats from the pan, about 1 minute. Add remaining salt, Worcestershire sauce, tomato sauce, and beef broth, and raise the heat to high. Stir together and wait for the mixture to simmer. Turn off heat, and sprinkle with some of the cheese, saving about 1/2 cup for the top. Use a spoon to poke and stir the cheese in evenly. Cover the pan tightly.
• Bake in the preheated oven for 45 minutes. Remove from the oven, uncover, and check rice for tenderness in a few spots. If rice is not tender, cover and continue to bake. Once rice is tender, remove the casserole, uncover, sprinkle over the rest of the cheese, and turn on the oven’s broiler.
• Broil casserole until cheese is melted, and starting to brown, 1 to 2 minutes. Let rest at least 10 minutes before serving.

Nutrition Facts (per serving)

One-Pan Stuffed Pepper Casserole is a comforting and convenient dinner that brings together the classic flavors of stuffed peppers in a much easier format. With savory ground beef, colorful bell peppers, tender rice, tomato sauce, and melted cheddar, it is hearty enough for a family dinner while still being simple enough for a busy weeknight.

Whether you are looking for easy high-protein meals, delicious dinner recipes, family-friendly casserole ideas, or a meal-prep-friendly dish, this recipe is a great option to keep in your rotation. The one-pan preparation also means less cleanup, making it even more practical for everyday cooking.

Serve it with your favorite fresh salad or roasted vegetables, save the leftovers for another meal, and make this comforting casserole whenever you need a simple dinner that delivers plenty of flavor. Don’t forget to save this recipe to Pinterest so you can easily find it the next time you’re planning your weekly meals.