1-First, preheat the oven to 400°F (200°C) and get your ingredients ready by chopping vegetables and measuring spices.

2-In a large skillet, brown the ground beef or turkey, Italian sausage, onion, bell pepper, mushrooms, and garlic over medium heat until everything is no longer pink, then drain any excess fat.

3-Next, stir in the pasta sauce and drained sliced olives, and spoon this mixture into a 9×13 inch baking dish. Layer on the sliced pepperoni and sprinkle with shredded mozzarella cheese for that classic pizza feel. Now, lay the pizza dough over the filling, covering as much as you can, and pierce it several times with a knife to let steam escape.

4-Brush the dough with olive oil and mix the grated Parmesan cheese with Italian seasoning in a small bowl before sprinkling it over the top. Bake for 15-20 minutes until the dough is golden brown, and let the casserole stand for 5-10 minutes before serving.