1 c. canned pumpkin
1/2 c. cold milk
1 (6 serving size) pkg. Jello vanilla flavor instant pudding
1 tsp. pumpkin pie spice
8 oz. thawed Cool Whip
1 Keebler ready graham cracker crust

Combine pumpkin, milk, pudding mix, and spice in small bowl. Blend with a wire whisk or beater on low speed for 1 minute. Fold in 3/4 container of whipped topping. Pour mixture in crust. Freeze for 4 hours. Serve partially frozen. Top with remaining Cool Whip sprinkled with cinnamon.