To halve the recipe, use half can or more pie filling, 1 3/4 cup cake mix, 4 tablespoons butter and half the amount of nuts. Use this version for small model crockpots.
If you don't have a crockpot and want to make a small version, use the half version and bake it in a 9 inch deep dish glass pie plate or an 8 inch square pan. Bake at 350 degrees for 35 minutes or until cake mix is golden brown. And of course, you can also make the full version in a 13x9 inch cake pan. It's dump cake! Easiest recipe ever.