Poor Camper’s Dump Cake

1 large can crushed pineapple
1 can cherry pie filling
1 package yellow cake mix
1 1/2 sticks margarine, cut up in pieces and arranged across top

Slightly mix all ingredients together except for margarine in a greased 9 x 13 inch pan. Place cut up pieces of margarine across top of cake.  Place on grill and bake at 350° for 1 hour.  Check that cake is baked thoroughly before removing from grill.