Marie'S Surprise Meat Loaf
["1 1/2 lb. ground beef", "1/2 c. chopped onion", "1/4 c. dry bread crumbs", "1 egg", "1/4 c. ketchup", "1 tsp. salt", "1/4 tsp. parsley", "1/8 tsp. pepper", "3/4 c. water", "2 Tbsp. margarine", "1/2 tsp. salt", "1/3 c. milk", "1 1/2 c. instant mashed potatoes", "1 egg", "1/4 c. shredded Cheddar cheese"]
["Heat oven to 350\u00b0.", "Grease 9 x 5-inch pan.", "Combine meat mixture ingredients together.", "Press half of mixture in pan."]
["ground beef", "onion", "bread crumbs", "egg", "ketchup", "salt", "parsley", "pepper", "water", "margarine", "salt", "milk", "instant mashed potatoes", "egg", "Cheddar cheese"]