01 - Preheat oven to 375°F. Line a baking sheet with foil and set aside.
02 - In a large skillet over medium heat, cook the ground beef and sausage until browned throughout. Drain excess fat. Add the onion and garlic, sautéing until softened, about 3 minutes. Stir in the marinara sauce, dried basil, dried oregano, salt, and pepper. Simmer for 5 minutes, then remove from heat.
03 - In a medium bowl, combine the ricotta cheese, eggs, a pinch of salt, and half of the grated Parmesan. Stir until smooth and evenly blended.
04 - Scatter half of the mozzarella evenly across the bottom of the pie crust. Lay 4 cooked lasagna noodles over the cheese layer, trimming as needed to fit the dish.
05 - Spread half of the ricotta mixture over the noodles, followed by half of the meat sauce. Repeat with the remaining noodles, ricotta mixture, and meat sauce, layering evenly.
06 - Sprinkle the remaining mozzarella and Parmesan evenly over the top of the assembled pie.
07 - Cover the edges of the pie crust with foil to prevent overbrowning. Bake on the prepared baking sheet for 40 to 45 minutes, until the top is bubbly and golden brown.
08 - Remove from the oven and let the pie cool for 10 minutes before slicing into wedges. Serve warm.