Pre heat oven to 350
Wash, cut length wise and de-seed acorn squash, I use a small ice cream scoop to do this
Place the following in a bowl as you prepare them
Peel, core, and corse chop apple
Ruff chop walnuts
Add brown sugar ( if you are a diabetic you can use plain Splenda), cinnamon, and butter.
Mix all well with your hands
Add mixture to the hollowed out cavity of both half of the acorn squash
Put filled acorn squash half a back together and wrap tightly in aluminum foil
Place in shallow baking pan and bake at 350 for 45min to 1-hour, or until squash gives to lite pressure
Remove from foil and using a spoon core out the inside, with the filling into a serving bowl, add more brown sugar if needed.