Dump Cake

1 can cherry pie filling
1 box yellow cake mix
1 can crushed pineapple
1/2 c. butter

Preheat oven to 350 degrees. Spread the cherry pie filling evenly in the bottom of a greased 13x9x2-inch baking dish. Dump pineapple with juice and cake mix in next, spreading evenly in the pan. Cut butter into pats and arrange on top of cake mixture. Bake for 1 hour.