Black Forest Dump Cake * 8 Oz. pineapple * 21 oz cherry pie filling * 18 1/2 oz Devil's food cake mix * 1 c Chopped pecans * 1/2 c butter or margarine -- melted * Whipped topping Drain pineapple, reserving liquid. Spread pineapple in lightly greased * 13-by-9-by-2-Inch pan; add pie filling, spreading gently over pineapple. Sprinkle dry cake mix evenly over pie filling. Top with pecans. Combine melted butter or margarine with the reserved pineapple juice. Drizzle over mixture in pan. Bake at 350 Degrees for 35-40 minutes. Cut into squares and top with whipped topping.