Heat up the waffle iron.Place a large skillet over medium heat and coat with cooking spray.Add the sweet potato noodles to the skillet and cook, turning frequently, for about 10 minutes or until noodles have completely softened.Add the noodles into a bowl and add in the pumpkin spice. Mix to combine thoroughly.Add in the full egg and toss to combine.Spray the waffle iron with cooking spray and pack in the noodles. You may have to play around with the noodles to get them to fit in all of the grooves.Cook the waffle according to the iron's settings.Serve with maple syrup.