In a large bowl add the mashed potatoes, stuffing, and turkey. Stir until evenly mixed.

Line a tray or baking sheet with parchment paper. Using your hands, roll the mixture into balls and place on the lined sheet. Place in the freezer at least 1 hour.

Beat the eggs in a bowl. Pour the panko bread crumbs in another bowl. Roll each ball in the eggs and then coat with panko bread crumbs.

If deep frying, pour vegetable oil in a saucepan over medium heat, 3 inches deep in the pan. When oil temp reaches 350 degrees (approx. 5 minutes) carefully add 3 balls and fry for 3 minutes until golden brown, flip halfway through. Repeat with remaining turkey balls.

If air frying, place 6 balls in the air fryer basket, spray with olive oil cooking spray. Set air fryer for 20 minutes and 390 degrees. Repeat with remaining turkey balls.

Serve with gravy.