Cook the pasta according to the package directions. Drain the pasta, rinse with cold water. Drain again. For the pasta crust, in a large mixing bowl combine the egg, milk, Parmesan cheese. Stir in the pasta. Spread the pasta mixture evenly in a greased 12 inch pizza pan. Bake in a 350ºF. oven for 20 minutes. Meanwhile in a large skillet cook the ground beef, onion, and garlic until the meat is brown. Drain the fat. Add the undrained tomatoes, cut up any large pieces of tomato, pepper strips, and Italian seasoning to meat mixture. bring to boiling, reduce heat. Simmer, uncovered, for 10 to 12 minutes or until the pepper strips are crisp tender and most of the liquid is evaporated, stirring once or twice. Stir in the mushrooms and crushed red pepper. Spoon the meat mixture over the pasts crust. Sprinkle with mozzarella cheese. Bake for 10 to 12 minutes more or until heated through and the cheese is melted. To serve, cut into wedges. Makes 6 servings