2 1/2 c. (20 oz.) crushed pineapple with juice
1 (16 oz.) can cherry pie filling
1 pkg. yellow cake mix
3/4 c. butter

Dump pineapple with juice into buttered 9'x13" pan and spread evenly. Dump cherry pie filling evenly over pineapple. Sprinkle cake mix evenly over fruit. Slice butter very thin and distribute evenly over top. Bake at 350 degrees for 45 minutes or until golden brown.