Pumpkin Pie Smoothie

1 15oz. Can pure pumpkin, chilled
1 12oz. Can evaporated fat free milk
1c. Vanilla yogurt
1/4c. Granulated sugar
1/4t. Pumpkin pie spice
Light whipped cream

Combine pumpkin, evaporated milk, yogurt, sugar, and pumpkin pie spice in blender, cover. Blend until mixture is smooth. If too thick, add water a little at a time, until you get the consistency that you want.