FIRST LAYER:

1 c. flour
1/2 c. butter, melted
1/2 c. walnuts, crushed

SECOND LAYER:

1 (8 oz.) pkg. cream cheese
1 c. powdered sugar
1 (9 oz.) Cool Whip

THIRD LAYER:

2 pkgs. instant pistachio pudding
2 1/2 c. milk

Mix first 3 ingredients and pat in a 9 x 13 inch pan. Bake at 350 degrees for 10 to 15 minutes; cool. Beat second layer ingredients together; let set, Then spread on first layer. Whip ingredients in the third layer and spread over the second layer. Spread a small carton of Cool Whip over the third layer.