Easy Lasagna
["2 lb. hamburger", "1 medium onion, chopped", "1 small can sliced mushrooms", "1 (16 oz.) box lasagna noodles", "1 (32 oz.) spaghetti sauce", "1 (16 oz.) pkg. cottage cheese", "1 (16 oz.) pkg. Mozzarella cheese, shredded", "1 (16 oz.) pkg. Cheddar cheese, shredded"]
["Cook hamburger and onions in pan.", "Boil noodles according to package directions.", "Drain and cool.", "Using a 9 x 13-inch cake pan, layer ingredients in this order:", "noodles, hamburger, sauce, cottage cheese, noodles, hamburger, sauce, mushrooms, Mozzarella cheese, noodles, hamburger, sauce, Cheddar cheese and noodles. Bake at 350\u00b0 for 30 to 40 minutes.", "Cover with aluminum foil before baking."]
["hamburger", "onion", "mushrooms", "lasagna noodles", "spaghetti sauce", "cottage cheese", "Mozzarella cheese", "Cheddar cheese"]