Bucatini pasta is a long cut pasta like spaghetti only thicker with a hole going through the center of the pasta. If you cannot find this pasta use spaghetti or linguine.Cook the pasta for about 4 minutes,no longer. It will finish cooking when you bake the final dish.
Combine the ricotta,egg,salt,pepper,one tablespoon of parsley and the cooked sausage meat. Add one pint of sauce and half of the grated Parmesan cheese to the mixture until all is incorporated.
Mix the par-cooked pasta with the cheese mixture to coat well. Next start by adding some sauce to the bottom your baking dish,then one fourth of the pasta mixture,top with more sauce and sprinkle some shredded mozzarella on top and repeat three more times ending with sauce and cheese on top.
Pre-heat your oven to 350 degrees,cover the casserole with foil that has been sprayed with a little cooking oil to prevent it from sticking and pulling off the cheese. Bake for 35-40 minutes,uncover 15 minute before it finishes to brown the top. Let it rest for 10 minutes before serving,serve with extra sauce and grated cheese. Enjoy!!