Pineapple-Pistachio Pie

• Pistachio pudding mix
• 8 oz. Cool Whip, thawed
• 10 oz. can crushed pineappel, drained
• Chocolate cookie crumb crust

Mix the pudding mix into the Cool Whip. Fold in the drained pineapple. Fill crust with mixture. Chill for at least two hours.