Beat cream cheese, pumpkin, sugar, and pumpkin pie spice with a mixer until blended.
Gently fold in about 3/4 of the tub of Cool whip or 2 1/2 cups.
Transfer mixture into a pie crust
Cover (make like a tent so it doesn't mess up the top of your pie) with foil and refrigerate for at least 3 hours)
Slice and serve with the remaining cool whip on top
ENJOY!