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Low-Carb Pizza Casserole

A satisfying, crust-free pizza experience featuring seasoned ground beef, fresh peppers, and melted cheese in a quick 40-minute casserole.
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Prep Time 15 minutes
Cook Time 25 minutes
Total Time 40 minutes
Servings: 6 servings
Course: Dinner, Main Course
Cuisine: Italian-American
Calories: 395
Ingredients Equipment Method Notes

Ingredients
  

  • 1.5 lbs ground beef lean preferred
  • 1 small onion diced
  • 1 green bell pepper diced
  • 2 cloves garlic minced
  • 1 tsp dried oregano
  • 0.5 tsp red pepper flakes optional
  • 1.5 cups marinara sauce no sugar added
  • 2 cups shredded mozzarella cheese
  • 0.5 cup parmesan cheese grated
  • 0.5 cup pepperoni slices
  • 0.25 cup black olives sliced, optional

Equipment

  • 9x13-inch baking dish
  • large skillet
  • wooden spoon

Method
 

  1. Preheat your oven to 375°F (190°C). Grease a 9x13 inch baking dish.
  2. In a large skillet, brown the ground beef until cooked. Drain any excess fat.
  3. Add diced onion and green pepper to the beef. Sauté for 5 minutes until vegetables are tender.
  4. Stir in garlic, oregano, red pepper flakes, salt, and pepper. Cook for 1 minute until fragrant.
  5. Add marinara sauce and simmer for 2-3 minutes. Transfer mixture to the baking dish.
  6. Sprinkle with mozzarella and parmesan. Top with pepperoni and olives.
  7. Bake for 20-25 minutes until cheese is bubbly. Let sit for 5 minutes before serving.

Notes

Storage: Refrigerate for up to 4 days. Variations: Swap beef for ground Italian sausage or turkey. Serve with a green salad or roasted zucchini for a complete meal. This dish is naturally gluten-free and keto-friendly.