In a medium bowl, combine the turkey and breadcrumbs. Mix gently with your hands, then mix in the egg and sweet potato. Shape into two 1/2-inch-thick patties.
In a medium skillet, heat the oil over medium heat. Add the patties and cook, turning once, until golden-brown, about 5 minutes. Transfer to a paper-towel-lined plate to drain. Top with the cranberry sauce and let your canine enjoy!