1. Place candy bar pieces in medium microwave-safe bowl. Microwave at MEDIUM (50%) 30 seconds; stir. If necessary, microwave an additional 15 seconds at a time, stirring after each heating, just until chocolate is melted and smooth when stirred. Cool slightly.
2. Fold 2 cups whipped topping into melted chocolate; divide evenly into crumb crusts. Cover; refrigerate several hours or until firm. Top with remaining whipped topping. Garnish as desired. 6 tarts
PIE VARIATION: Melt 1-1/2 HERSHEY'S Milk Chocolate Bars (5 oz. each); fold into 1 tub (8 oz.) thawed frozen non-dairy whipped topping. Spoon into packaged crumb crust (6 oz.) or 9-inch baked pastry crust.