Description:
This Stuffed Pepper Casserole combines savory seasoned ground beef, colorful bell peppers, tender rice, tomatoes, and melted cheese into one cozy, satisfying dish. It has all the familiar flavors of classic stuffed peppers without the extra work of stuffing individual peppers.
The casserole is hearty, cheesy, flavorful, and easy to portion for meal prep. With protein-rich ground beef and vegetables in every serving, it can fit nicely into a balanced high-protein meal plan.
Can This Stuffed Pepper Casserole Support Weight Loss Goals?
This casserole can fit into a weight-conscious eating pattern when served in appropriate portions. Ground beef provides protein that can make the meal satisfying, while bell peppers and tomatoes add vegetables and flavor without requiring heavy sauces. Choosing lean ground beef and measuring the cheese and rice can help keep calories and carbohydrates manageable.
Does Stuffed Pepper Casserole Fit a High Protein Lifestyle?
Yes, especially when prepared with lean ground beef and a moderate amount of cheese. The main protein comes from the beef and cheese, while bell peppers, tomatoes, and onions provide vegetables and flavor. Depending on the rice and portion size, the dish can have moderate net carbs rather than being strictly low-carb. For a lower-carb version, cauliflower rice can replace regular rice.
My Personal Experience
- I love how comforting it tastes:
The combination of seasoned beef, peppers, tomatoes, and melted cheese gives every bite a classic stuffed-pepper flavor. - It is much easier than traditional stuffed peppers:
Everything cooks together in one casserole instead of requiring individual peppers to be filled and arranged. - The leftovers are especially convenient:
Portions reheat well, making this a practical high-protein meal-prep option for busy days. - The cheese adds the perfect finishing touch:
A golden, melted cheese layer brings creaminess and makes the casserole feel extra satisfying.
Perfect For:
This casserole is ideal for easy family dinners, weekend meal prep, high-protein lunches, and comforting weeknight meals. It can also be adapted for lower-carb eating by swapping regular rice for cauliflower rice, making it more suitable for certain keto-style or low-carb meal plans.
Why You’ll Love This Recipe:
- One-dish convenience:
The ingredients come together in one casserole, reducing both preparation time and cleanup. - Classic stuffed-pepper flavor:
Beef, bell peppers, tomatoes, onion, and Italian-style seasonings create a familiar savory combination. - Protein-packed:
Lean ground beef and cheese provide substantial protein for a satisfying meal. - Great for meal prep:
Individual portions can be refrigerated and reheated throughout the week. - Easy to customize:
You can use cauliflower rice, extra vegetables, different cheese, or additional spices depending on your preferences.
Common Mistakes to Avoid:
- Using too much liquid: Excess tomato liquid can make the casserole watery instead of thick and hearty.
- Overcooking the beef: Cook just until browned before combining it with the other ingredients to keep the texture pleasant.
- Cutting the peppers too large: Smaller pieces soften more evenly and distribute throughout the casserole.
- Adding cheese too early: Adding it only toward the end helps prevent an overly browned or dry cheese topping.
Required Equipment:
- Large skillet — Provides enough room to brown the beef and sauté the vegetables evenly.
- 9×13-inch baking dish — Gives the casserole enough space to cook and brown properly.
- Wooden spoon — Makes it easy to break up the ground beef while cooking.
- Measuring cups and spoons — Helps keep ingredient quantities consistent.
- Aluminum foil — Useful for covering the casserole if the top browns too quickly.
Storage Instructions:
Store cooled leftovers in airtight containers in the refrigerator for 3–4 days. For meal prep, divide the casserole into individual containers for easy reheating.
For longer storage, freeze portions in freezer-safe airtight containers for up to 2–3 months. Thaw overnight in the refrigerator before reheating.
Reheat individual portions in the microwave until steaming hot, or reheat larger portions covered in the oven at 350°F (175°C) until warmed through.
Recipe Details
- Preparation Time: 15 minutes
- Cooking Time: 35 minutes
- Total Time: 50 minutes
- Servings: 6
- Best Season: All-season
- Total Calories: Approximately 430 calories per serving
Short Description:
A cozy casserole packed with seasoned beef, colorful bell peppers, tomatoes, rice, and melted cheese.
It delivers classic stuffed-pepper flavor in an easier one-dish format.
Perfect for a satisfying high-protein dinner or convenient meal prep.
📝 Ingredients:
- 1 lb (450 g) lean ground beef
- 3 medium bell peppers, diced
- 1 medium yellow onion, diced
- 3 cloves garlic, minced
- 1 cup cooked white or brown rice
- 1 can (14.5 oz / 411 g) diced tomatoes, undrained
- 1 can (8 oz / 227 g) tomato sauce
- 1 cup shredded cheddar cheese
- 1 tsp Italian seasoning
- 1 tsp smoked paprika
- 1/2 tsp salt
- 1/4 tsp black pepper
- 1 tbsp olive oil
- 1/4 cup chopped fresh parsley, optional
Note: For a lower-carb version, replace the cooked rice with approximately 1½ cups cooked cauliflower rice.
Directions:
- Preheat the oven:
Heat the oven to 375°F (190°C). Lightly grease a 9×13-inch baking dish. - Brown the beef:
Heat a large skillet over medium-high heat and add the olive oil. Add the ground beef and cook for 5–7 minutes, breaking it apart with a wooden spoon until browned and no longer pink. - Cook the vegetables:
Add the diced onion and bell peppers. Reduce to medium heat and cook for 5–6 minutes, stirring occasionally. The peppers should begin to soften but still have some texture. - Add the garlic and seasonings:
Stir in the garlic, Italian seasoning, smoked paprika, salt, and black pepper. Cook for about 30–60 seconds, just until fragrant. - Combine the casserole mixture:
Add the diced tomatoes, tomato sauce, and cooked rice. Stir thoroughly and simmer over medium-low heat for 3–4 minutes. The mixture should look thick and well combined rather than watery. - Transfer to the baking dish:
Spoon the mixture into the prepared casserole dish and spread it into an even layer. - Add the cheese:
Sprinkle the shredded cheddar evenly over the top. For an extra protein boost, use a moderate amount of cheese while keeping the beef portion substantial. - Bake:
Bake uncovered at 375°F (190°C) for 15–20 minutes, until the casserole is bubbling around the edges and the cheese is completely melted. - Check the texture:
The peppers should be tender but not mushy, while the center should look moist and cohesive rather than watery. - Rest and serve:
Remove from the oven and let it rest for 5 minutes. Garnish with fresh parsley if desired, then serve warm.
High-Protein Cooking Tips:
- Choose 90–95% lean ground beef to increase the protein-to-calorie ratio.
- Keep the beef as the main protein source rather than replacing too much of it with rice.
- For fewer carbohydrates, substitute cauliflower rice for regular rice.
- Use cheese as a flavorful protein addition without making it the only protein source.
Nutrition Facts (Per Serving – Approximate):
- Calories: 430 kcal
- Fat: 22 g
- Cholesterol: 85 mg
- Sodium: 720 mg
- Potassium: 700 mg
- Total Carbohydrates: 32 g
- Fiber: 5 g
- Net Carbs: 27 g
- Sugars: 8 g
- Protein: 32 g
- Calcium: 220 mg
Nutrition values are approximate and can vary depending on the exact brands, lean percentage of beef, cheese, rice, and portion sizes used.
Notes:
- Storage: Refrigerate leftovers in airtight containers for 3–4 days or freeze for up to 2–3 months.
- Reheating: Microwave individual servings until hot, or reheat covered in a 350°F oven.
- Allergy note: This recipe contains dairy. Use dairy-free cheese if needed, and check canned ingredients for additional allergens.
- Flavor boost: Add red pepper flakes, Worcestershire sauce, fresh parsley, or a little extra smoked paprika for more flavor.
- Lower-carb option: Cauliflower rice works especially well and keeps the casserole hearty while reducing carbohydrates.
Frequently Asked Questions:
1. Can I make Stuffed Pepper Casserole with ground turkey?
Yes, lean ground turkey can replace the ground beef for a lighter protein option.
2. Can I make this casserole without rice?
Yes, you can omit the rice or replace it with cauliflower rice for a lower-carb version.
3. Can I prepare this casserole ahead of time?
Yes, assemble it ahead, refrigerate it covered, and bake when ready, adding a few extra minutes if it is cold.
4. What cheese works best for this recipe?
Cheddar, Monterey Jack, mozzarella, or a cheddar-Monterey Jack blend all work well.
5. Can I freeze Stuffed Pepper Casserole?
Yes, cool it completely, portion it into freezer-safe containers, and freeze for up to 2–3 months.
6. How do I know when the casserole is done?
It is ready when the cheese is melted and bubbling, the edges are hot, and the center is heated through.