1 (21 ounce) can cherry pie filling
1 (20 ounce) can crushed pineapple
1 (18 1/2 ounce) yellow cake mix
1 cup chopped pecans, walnuts or sunflower seeds
1 cup (2 sticks) melted butter

Preheat oven to 350°F.

Line the bottom of a greased 13x9x2-inch baking pan with cherry pie filling, cover with crushed pineapple. Sprinkle with 18 1/2 ounce yellow cake mix (dry) and distribute evenly over cherry and pineapple; press down. Add chopped nuts. Melt butter; pour over mixture.

Bake in preheated oven for 50 minutes or until a wooden pick inserted in center comes out clean.