Hamburger Pie
["1 lb. ground beef", "1/2 c. chopped onion", "1/2 tsp. salt", "dash of pepper", "1 (1 lb.) can (2 c.) cut green beans, drained", "1 (10 3/4 oz.) can condensed tomato soup", "5 medium potatoes, cooked", "1/2 c. warm milk", "1 beaten egg", "1/2 c. shredded processed American cheese"]
["Heat oven to 350\u00b0.", "In large skillet, cook meat and onion until meat is lightly browned and onion is tender.", "Add salt and pepper.", "Add drained beans and soups; pour into greased 1 1/2-quart casserole.", "Mash potatoes while hot.", "Add milk and egg. Season with salt and pepper.", "Spoon in mounds over casserole. Sprinkle potatoes with cheese.", "Bake in moderate oven (350\u00b0) for 25 to 30 minutes.", "Makes 4 to 6 servings."]
["ground beef", "onion", "salt", "pepper", "green beans", "tomato soup", "potatoes", "warm milk", "egg", "American cheese"]