Crispy Potato Tart with Kale Microgreens

New potatoes are in season, and they are best celebrated in this Crispy Potato Tart with Kale Microgreens. This easy recipe is made with puff pastry that is topped with smoked gouda, shallots, thinly sliced new potatoes, and fresh kale microgreens. Since the shallots are potatoes are thinly sliced using a mandoline, there is no…