Place pie crusts on baking sheet. Mix Neufchatel, 1 Tbsp. sugar and 1 egg until blended; spoon into pie crusts.
Mix pumpkin, spice, remaining sugar and egg until blended; spoon over Neufchatel layers in pie crusts. Sprinkle with nuts.
Bake 40 min. or until centers are set. Cool completely. Serve topped with COOL WHIP.