German Meat Casserole
["3 large potatoes, sliced thin", "5 carrots, chopped", "1 small onion, diced", "2 Tbsp. butter", "2 lb. ground beef", "1 Tbsp. catsup", "1 (10 1/2 oz.) can cream of mushroom soup", "1 (4 oz.) can button mushrooms, drained", "1 (3 1/2 oz.) can French fried onion rings"]
["Parboil carrots and potatoes for 20 minutes.", "Saut onion in butter; add beef and cook until turns grey.", "Butter a 2 1/2-quart casserole. Alternate layers, beef-onion mixture and vegetables. Mix catsup with soup and pour over casserole.", "Saut mushrooms in 3 tablespoons butter and place on top of casserole.", "Sprinkle onion rings over top.", "Bake at 350\u00b0 about 20 minutes or until onion rings are brown and crisp.", "Yield:", "6 large servings."]
["potatoes", "carrots", "onion", "butter", "ground beef", "catsup", "cream of mushroom soup", "button mushrooms", "onion"]