Green Bean Casserole
["2 cans cut or French-style green beans", "1 small can sliced mushrooms", "1 can cream of mushroom soup", "1 can French-fried onion rings"]
["Preheat oven to 325\u00b0.", "Combine all ingredients, except onion rings.", "Put in casserole baking dish.", "Top with onion rings.", "Bake for 30 minutes."]
["green beans", "mushrooms", "cream of mushroom soup", "onion"]