Bake the pie according to the package directions. Remove from the oven and cool completely.
Open 8 half pint mason jars.
Place two spoonfuls of pie in the jars. Spray 1 tablespoon of Reddi-wip® on top of the pie and sprinkle with 1 tablespoon of pistachios on top. Repeat two more times or until the jars are full.
Screw on the lids and deliver to friends and family!