HEAT oven to 350ºF.
PLACE tart shells on baking sheet. Mix cream cheese spread, 1 Tbsp. sugar and 1 egg in small bowl with whisk until blended; spoon into tart shells.
MIX pumpkin, remaining sugar, egg and spice untill blended. Spoon over cream cheese layers. (Pumpkin layers will not completely cover cream cheese layers.) Sprinkle with nuts.
BAKE 40 min. or until centres are set. Cool completely. Serve topped with Cool Whip.
serving size = 1 tart (61 g)