Preheat the oven to 350. Grease a deep dish pie plate.
Cook the spaghetti according to the package directions, then drain. Toss the spaghetti with the melted butter, eggs, and parmesan, then press it into a crust in the pie plate.
In a medium bowl, mix together the ricotta cheese, parsley, oregano, and basil. Spread the ricotta mixture over the spaghetti in the pie plate.
In a large skillet, cook the ground beef and Italian sausage, breaking it into small pieces as it cooks. When the meat is cooked through, drain the grease. Add the diced tomatoes and marinara sauce to the skillet and stir to combine. Pour the meat sauce over the ricotta layer, spreading evenly.
Sprinkle the mozzarella cheese over the top of the meat sauce. Bake 20-25 minutes, until the cheese is melted and the sauce is bubbling. Let sit for ten minutes, then cut into wedges and serve.