Coat the crockpot with nonstick spray - we used the olive oil option.
Chop your walnuts well with a sharp knife.
Place the oats, brown sugar, cinnamon, baking powder, salt and nuts in the crockpot and stir well.
Remove two cups and set aside.
Whisk the eggs and milk together well.
Pour half of the egg-milk mixture over the oats and set aside.
Pour the cherry pie filling overtop of the oats, being careful to avoid the sides to prevent burning.
Cover the cherry pie filling with the remaining 2 cups of oatmeal mixture, and then pour the remaining egg mixture overtop.
Cover and "bake" for 4-6 hours on low or 2 hours on high.
Notes
To freeze crockpot oatmeal, after it cools, portion it into airtight containers or freezer bags. Label with the date and freeze. When you're ready to enjoy, thaw it in the fridge overnight and warm it up on the stove or microwave.