Making your Low Carb Pizza Casserole is simple. Follow these steps to get it just right:

1. Preheat Oven: Preheat your oven to 375°F (190°C).
2. Cook Ground Meat: In a skillet, brown the ground beef over medium heat until fully cooked. Drain the excess grease.
3. Add Vegetables: Stir in the diced onion and bell peppers and sauté until they are softened, about 5 minutes.
4. Season Mixture: Sprinkle in the garlic powder, Italian seasoning, salt, and pepper. Mix well.
5. Layer Ingredients: In a large casserole dish, spread the meat and vegetable mixture evenly across the bottom.
6. Add Sauce: Pour the marinara sauce over the meat mixture, spreading it out evenly.
7. Top with Cheese: Layer shredded mozzarella cheese on top, ensuring it covers the sauce completely.
8. Add Pepperoni: Scatter pepperoni slices on top of the cheese for added flavor.
9. Bake: Place the casserole in the preheated oven and bake for about 25-30 minutes or until the cheese is bubbly and golden.
10. Garnish: Remove from the oven and allow it to cool slightly. Optionally, top with fresh basil for a refreshing touch.

Each of these steps is designed to ensure that your casserole turns out perfectly.