I haven't made this yet, but it sounds very good, fast and easy! Found in an old microwave cookbook.
- Pour apple pie filling into a deep casserole dish that will fit in you microwave. Sprinkle evenly with the cake mix. Cover completely with a layer of butter. Mix the brown sugar with the coconut, walnuts and cinnamon. Sprinkle this mix over the layer of butter. Cook on HIGH for 8-9 minutes. Serve with whipped cream, if desired.