Hamburger Pie
["1 lb. ground chuck", "1 small onion", "1/2 tsp. salt", "1/4 tsp. pepper", "1 (1 lb.) can green beans", "1 (10 1/2 oz.) can tomato soup", "2 c. mashed potatoes (instant)"]
["Cook onion and beef in skillet until brown.", "Add seasonings. Drain beans and add soup.", "Pour into 1 1/2 quart baking dish. Spoon mashed potatoes over mixture and bake for 20 minutes at 350\u00b0.", "Serves 4 to 6."]
["ground chuck", "onion", "salt", "pepper", "green beans", "tomato soup", "potatoes"]