Pumpkin Oreo Cream Dessert Squares

Ingredients:

Crust:

2 1/2 cups Oreo cookie crumbs (don't use double-stuff)
4 tbs unsalted butter, melted

Filling:

1/2 cup pumpkin puree (solid-pack, not pie filling)
1 pkg (4 serving size) instant vanilla pudding mix
1/2 cup evaporated milk -OR- light cream/half and half
1 tsp pumpkin pie spice
1 tub (8 oz) extra creamy whipped topping

Directions: