Easy Lasagne
["2 lb. lean ground beef", "15 oz. Hunt's Italian tomato sauce", "1 small onion, chopped", "12 oz. grated Mozzarella cheese", "4 oz. grated Parmesan cheese", "10 to 12 lasagne noodles", "4 oz. mushrooms", "12 oz. cottage cheese", "12 oz. grated Cheddar cheese"]
["In a large pan, brown ground beef; drain.", "Add tomato sauce, mushrooms and onion; bring to a boil.", "Reduce heat and simmer for 10 minutes.", "Prepare noodles according to package directions."]
["lean ground beef", "'s Italian", "onion", "Mozzarella cheese", "Parmesan cheese", "noodles", "mushrooms", "cottage cheese", "Cheddar cheese"]