Mix pecans, flour and melted margarine. Spread in bottom of 9x13 pan. Bake at 350 degrees for 30 minutes. COOL WELL before proceeding. Cream the cream cheese, powdered sugar and Cool Whip. Spread over crust. Mix vanilla and chocolate pudding mixes with milk as directed on packages. Spread over cream cheese mixture. Top with Cool Whip and chopped nuts. Refrigerate at least 5-6 hours.
Notes
Jo Ann is my mother-in-law. Whenever I make this dessert, everyone raves about it!