7-Minute Tuna Casserole
["1 (6 1/2 oz.) can tuna, drained", "1 (3 oz.) can French fried onion rings", "1 c. celery", "1/4 tsp. onion powder", "1 (4 oz.) can mushrooms, drained", "1 can cream of celery soup"]
["Combine 1/2 can of onion rings with other ingredients and place in greased casserole.", "Bake at 350\u00b0 for 25 minutes. Sprinkle remaining rings on top.", "Bake 5 minutes longer.", "Serves 4 to 5."]
["tuna", "onion", "celery", "onion powder", "mushrooms", "cream of celery soup"]