Stir together pumpkin puree, pudding mix, milk, and pumpkin pie spice. Stir until no lumps remain.
Carefully fold in Cool Whip.
Spread pumpkin mixture in prepared crust. Chill at least 3 hours or until it sets enough to slice. Serve with whipped cream.
Serving: 1g | Calories: 224kcal | Carbohydrates: 38g | Protein: 2g | Fat: 7g | Saturated Fat: 2g | Cholesterol: 5mg | Sodium: 224mg | Potassium: 127mg | Fiber: 1g | Sugar: 22g | Vitamin A: 4830IU | Vitamin C: 1.4mg | Calcium: 57mg | Iron: 1.1mg