Pizza Casserole
["1 (7 oz.) pkg. thin spaghetti", "1 stick margarine", "3/4 c. chopped onion", "1 lb. sausage", "1 large jar Ragu chunky garden style spaghetti sauce", "olives, halved", "1 c. shredded Mozzarella cheese", "1 c. shredded Cheddar cheese", "1 c. shredded Swiss cheese", "1 pkg. sliced pepperoni"]
["Cook spaghetti according to package.", "Brown sausage and drain. Melt margarine and onion (I do this in microwave for 2 to 3 minutes).", "Drain spaghetti and onion-margarine mixture in 13 x 9-inch baking dish.", "Layer sausage, Ragu sauce, shredded Mozzarella, Swiss and Cheddar cheese.", "Top with pepperoni and olives.", "Bake at 350\u00b0 for 30 minutes."]
["thin spaghetti", "margarine", "onion", "sausage", "sauce", "olives", "Mozzarella cheese", "Cheddar cheese", "Swiss cheese", "pepperoni"]