1 can cherry pie filling
1 can crushed pineapple
1 (1 layer) yellow cake mix
1/2 to 3/4 c. chopped pecans
1/2 c. melted butter

Mix pie filling and pineapple in square glass microwave cake pan. Sprinkle cake mix evenly over top. Sprinkle with pecans. Drizzle butter over pecans. Microwave on high for 15 minutes, turning at least once.