Preheat oven to 425 degrees. Soften pie crusts following package instructions.
Gently unroll crusts; cut each into about 4.5-inch circles, using the 4-inch removable tart pan bottom as a guide. Press each piece into 4-inch tart pan; prick bottom with fork. Bake 5-8 minutes or until golden brown. Cool completely.
In large bowl, prepare pudding mix with milk following package instructions. If desired, add pie spice. Spoon about 1/4 cup pudding into each cooled tart shell; spread out evenly.
Squeeze Decorating Gel, Sparkle Gel or Cookie Icing in concentric circles over pudding surface; run knife through pudding from center of circles to edge of tart to create spider web. Chill at least 20 minutes.