Pour four cups of mini-marshmallows into a sprayed 9"x13" cake pan. Prepare chocolate cake mix according to directions on package. Pour over marshmallows. Spoon cherry pie filling evenly over cake. Bake at 350 degrees F for about 50 minutes.
Or until toothpick inserted comes out clean. Cool completely. Top with Cool Whip. Serves 15.(try peach or strawberry pie filling with vanilla cake mix,or apple pie filling with spiced or carrot cake mix).