Spinach Casserole
["2 pkg. frozen chopped spinach, cooked and drained", "2 c. onion, chopped", "1 c. mayonnaise", "2 eggs, beaten", "1 c. sharp Cheddar cheese, shredded", "1 can cream of mushroom soup, undiluted"]
["Mix together and place in 9 x 12-inch baking dish.", "Bake in 350\u00b0 oven for 45 minutes."]
["spinach", "onion", "mayonnaise", "eggs", "Cheddar cheese", "cream of mushroom soup"]