Texas Yum Yum

In large bowl combine chocolate pudding mix with 1 ½ cups milk. Pour into graham cracker crust and level with back of spoon.
In a clean bowl combine softened cream cheese with 2 cups whipped topping until smooth. Fold in powdered sugar. Spread over chocolate layer and level with back of spoon.
In same bowl combine vanilla pudding mix with remaining milk. Fold in remaining whipped topping. Spread over cream cheese layer. Sprinkle with nuts.
Refrigerate for at least 30 minutes then cut into slices to serve.