Scalloped Green Beans
["2 cans French-style green beans, drained", "1 (8 oz.) can sliced water chestnuts, drained", "3 oz. sliced mushrooms", "1 1/2 c. cubed Cheddar cheese", "1/4 c. minced onion", "2 Tbsp. flour", "2 Tbsp. margarine", "1 3/4 c. milk", "salt and pepper to taste"]
["Melt margarine in casserole in microwave.", "Stir in flour.", "Add milk and stir.", "Add salt and pepper, green beans, water chestnuts, mushrooms, minced onion and cheese.", "Stir well.", "Bake at 325\u00b0 until cheese is melted.", "Stir occasionally.", "Ready to serve when hot and bubbly."]
["green beans", "water chestnuts", "mushrooms", "Cheddar cheese", "onion", "flour", "margarine", "milk", "salt"]