1️⃣ Cook the ground beef and Italian sausage together in a skillet over medium heat until fully browned and no longer pink. Drain the excess fat and let the meat mixture cool slightly.

2️⃣ Preheat your oven to 220°C (425°F).

3️⃣ Roll out one of the pie crusts to fit into a deep-dish pie pan or deep skillet. Press it firmly into the base and up the sides. Layer half of the shredded mozzarella cheese over the bottom of the crust.

4️⃣ Evenly spread the cooked beef and sausage mixture over the cheese layer. Add half of the pepperoni slices on top of the meat layer.

5️⃣ Pour the pizza or marinara sauce evenly across the meat and pepperoni. Sprinkle the Italian seasoning, garlic powder, and red pepper flakes (if using) over the sauce.

6️⃣ Add the remaining mozzarella and then the cheddar or provolone cheese over the sauced layer. Arrange the rest of the pepperoni slices over the cheese.

7️⃣ Roll out the second pie crust and place it over the top of the filling. Crimp the edges of the bottom and top crusts together to seal the pie. Brush the top crust with melted butter and lightly dust with additional garlic powder.

8️⃣ Place the pie in the preheated oven and bake for 20 to 25 minutes. Start checking around the 18-minute mark. The pie is ready when the crust is deeply golden and the cheese is bubbling through the edges or vents.