Pineapple-Cherry Cake
["1 20 oz. can crushed pineapple", "1 21 oz. can cherry pie filling", "1 box yellow cake mix", "1/2 cup butter"]
["Spread pineapple in 9 x 13 greased pan.", "Pour pie filling over that.", "Sprinkle cake mix on top.", "Dot with butter.", "Bake 350 degrees for 50 to 60 minutes."]
["pineapple", "cherry pie filling", "yellow cake mix", "butter"]