Definition: In this task, you have to generate the title of the recipe given its required ingredients and directions.
Input: ingredients:  '2 lb. ground chuck', '1 egg', '4 saltine crackers, crushed', '1/4 tsp. salt', '1/8 tsp. pepper', '1 Tbsp. minced onion', 'fat for browning meatballs', '1 (32 oz.) jar Ragu spaghetti sauce', '4 oz. Mozzarella cheese, shredded', '4 oz. Cheddar cheese, shredded', '4 oz. Swiss cheese, shredded',<sep> directions: 'Mix ground chuck, egg, cracker crumbs, salt, pepper and minced onion.', 'Form into 1 1/2-inch balls.', 'Saute in fat until browned. In crock-pot, layer 1/3 Ragu, 1/2 meatballs, 1/2 Cheddar and Mozzarella and 1/3 sauce.', 'Repeat with second layer of meatballs, Cheddar and Mozzarella cheeses and sauce.', 'Top with Swiss cheese. Simmer about 2 hours on low.', 'Serves 6 to 8.'

Crock-Pot Italian 3 Cheese Meatballs