1 lb. hamburger
1 onion
Green pepper
Mushrooms
1 pkg. pepperoni slices
Mozzarella cheese, shredded
Rigatoni (or other pasta)
Spaghetti sauce (at least 1 pt.)

Cook hamburger. Cook pasta. Combine all in 11"x13" baking dish. Pour spaghetti sauce over. Bake at 350 degrees for 25 minutes, until hot and bubbly. Everything you put in this is good. Just add how much you want of everything.