Wild Rice Casserole
["1 small box long grain and wild rice", "1 lb. hamburger", "1 small onion", "1 can sliced water chestnuts", "2 cans cream of mushroom soup", "1 can mushrooms, drained"]
["Cook wild rice as directed. Brown hamburger and onion. Add to wild rice. Add all remaining ingredients. Heat well and serve."]
["long grain", "hamburger", "onion", "water chestnuts", "cream of mushroom soup", "mushrooms"]