Step 1
Use a box grater to grate half of the apples. You can also finely dice it, but I prefer it grated. Thinly slice the remaining apple and set aside for serving on the burger.
Step 2
Add the grated apple, turkey, sage, salt, mustard, pepper, garlic powder, and onion powder to a bowl. Mix using your hands. Form into patties, about 3/4 inch thick.
Step 3
Brush the patties with olive oil. Cook in a medium hot skillet for 4-5 minutes per side or until cooked through. Top with the sliced apples. These also come out great on the grill. Cook for 4-5 minutes per side until cooked through. Let rest 5 minutes, tented with foil.