Preheat oven to 350 degrees.
In a bowl, combine flour, chopped nuts and butter. Mix together thoroughly. Press into a 9x13 inch baking dish. Bake in preheated oven for 20-30 minutes. Let cool.
In another bowl, soften cream cheese and fold in one container Cool Whip. Spread over baked crust.
In the same bowl, mix together pudding, lemon juice and milk. Fold in remaining Cool Whip and spread over cream cheese layer. Sprinkle finely chopped nuts on top. Refrigerate. Makes 12-15 servings. Enjoy!