Beef And "Tater" Bake
["1 1/2 lb. ground beef", "1 c. breadcrumbs (soft)", "1 egg, beaten", "1/2 c. onion, chopped", "1/2 c. ketchup", "1/2 tsp. salt", "1/8 tsp. pepper", "3 c. mashed potatoes (hot)", "1 c. American cheese, shredded"]
["Pat meat into an 8-inch square baking pan.", "Bake at 350\u00b0 for 30 minutes.", "Remove from oven; drain.", "Combine mashed potatoes and 3/4 cup cheese; spread on meat.", "Top with remainder of cheese. Bake for 20 minutes."]
["ground beef", "breadcrumbs", "egg", "onion", "ketchup", "salt", "pepper", "potatoes", "American cheese"]