1/2 c. pecans, chopped
1 stick butter
1 c. flour
1 c. powdered sugar
1 lg. pkg. cream cheese
1 pkg. Cool Whip
1 pkg. instant chocolate pudding

Mix pecans, butter, and flour. Put into 9x13 pan and pat down for crust. Bake 15-20 minutes at 375 degrees. Cool. Mix cream cheese, sugar, and 1/2 of Cool Whip; blend until smooth. Pour on crust. Mix pudding as directed on package. Pour over cream cheese and top with remaining Cool Whip.