Texas 4-Layer Pie

Crust:
1 square softened butter or margarine
1 C flour
1/2 C chopped walnuts
Mix together and press into 9X12 baking pan.
Bat at 350 degrees for 13 minutes.  Cool.

2nd Layer:
8 oz. cream cheese
1 C powdered sugar
1/2 9 oz. carton whipped topping

3rd Layer:
2 small pkgs. instant pudding (chocolate or butterscotch)
3 C milk

4th Layer:
Whipped Topping