Cavatini
["1 lb. hamburg", "1 jar spaghetti sauce", "1 c. mushrooms (optional)", "1 onion", "1 c. each: shells, springs and pinwheels", "1 lb. Mozzarella, grated", "1/2 lb. pepperoni"]
["Brown hamburg and onion; add sauce and mushrooms.", "Simmer. Add to shells.", "Layer shells, then pepperoni and Mozzarella.", "Top with Parmesan cheese and sauce.", "Bake at 350\u00b0 for 1 hour."]
["hamburg", "spaghetti sauce", "mushrooms", "onion", "pinwheels", "Mozzarella", "pepperoni"]