Virginia'S Spinach Casserole
["3 cans Franco-American macaroni and cheese (14 3/4 oz. each)", "1 pkg. frozen chopped spinach, thawed and thoroughly drained (squeeze all moisture out, 10 oz.)", "1 bunch small green onions, chopped", "1/2 lb. sharp cheese, shredded", "2 cans onion rings for top (2.8 oz.)"]
["Mix first 4 ingredients and chill thoroughly.", "Place in a lightly greased baking dish.", "May sprinkle small amount of shredded cheese on top.", "Bake at 350\u00b0 for 1 hour or until firm, then add onion rings and brown."]
["macaroni", "spinach", "green onions", "sharp cheese", "onion rings"]