Preheat your oven to 375°F (190°C) and prepare the crust by pressing the pie dough into a deep-dish pan and pricking the bottom.

In a large skillet, heat olive oil over medium heat, then add ground beef and sausage, seasoning with salt, pepper, garlic powder, and Italian seasoning. Cook until browned.

Spread a thin layer of pizza sauce over the pre-baked crust, then add mozzarella cheese, the cooked meat mixture, more pizza sauce, and pepperoni slices.

Bake the assembled pie in the oven for 25-30 minutes until the cheese is bubbly and golden brown.

Let the pie cool for 5-10 minutes, garnish with parsley if desired, then slice and serve.