1Heat oven to 350°F. Spray 12-inch pizza pan with cooking spray.
2In medium bowl, stir cookie mix, butter and egg until soft dough forms. Spread dough evenly in pan.
3Bake 15 to 20 minutes or until edges are golden brown. Cool completely in pan on cooling rack, about 30 minutes. Remove cookie crust to serving platter.
4In small bowl, mix cream cheese and powdered sugar until smooth. Spread over crust. Spread pudding over cream cheese layer. Sprinkle with nuts. Cut into wedges to serve.