Preheat oven to 350° and line a sheet tray with parchment paper. Set aside.
Add the turkey to a medium bowl and add grated apple, salt, and apple pie spice. Combine well until all the apple is mixed in. Divide evenly into 8 pieces and patty them out to 1/3 inch thick. Place them on the sheet tray and bake for 20 minutes.
Serve warm with nut butter if desired. Store leftovers in the fridge, covered.