Preheat waffle maker to medium-high heat. Grease waffle maker with vegetable spray.
Press 1-2 cups of stuffing into the waffle maker (depending on its size). Close top and cook 4-6 minutes or until the stuffing is golden brown and crispy. Open top and cool several minutes.
Remove waffle to a plate.
Top waffle with reheated turkey, mashed potatoes and gravy.
Serve with New England Cranberry Relish or Cranberry Horseradish Sauce.