COMBINE pumpkin, evaporated milk, yogurt, sugar and pumpkin pie spice in blender; cover. Blend until mixture is smooth. If a thinner smoothie is desired, add water, a little at a time, until desired consistency is reached.
TOP with whipped cream; sprinkle with additional pumpkin pie spice.
NOTE: For a richer and creamier version of this recipe, substitute NESTLÉ CARNATION Evaporated Lowfat 2% Milk or Evaporated Milk for the Evaporated Fat Free Milk.