Fancy Green Bean Casserole
["2 cans French style green beans, drained and rinsed", "1 can sliced water chestnuts, drained", "2 Tbsp. butter", "1 can French fried onions", "1 can cream of chicken soup*", "grated parmesan cheese (optional)"]
["*May substitute cream of mushroom soup and blend half the onions into the bean mixture, placing the other half on top."]
["French style green beans", "water chestnuts", "butter", "onions", "cream of chicken soup", "parmesan cheese"]