Green Bean Casserole
["2 (9 oz) pkg. frozen French-style green bean (partially cooked)", "2 Tbsp. butter", "1/2 envelope dry onion soup mix", "1/2 c. sour cream", "1 can cream of mushroom", "1 (3 oz) can French fried onion rings"]
["Drain beans and stir in butter. Mix other ingredients into the beans and pour all into a casserole dish. Bake uncovered at 350\u00b0 for 20 minutes. Top with onion rings and bake 5 to 10 minutes longer."]
["green bean", "butter", "onion soup", "sour cream", "cream of mushroom", "onion"]