reheat an oven to 400°F. Line a large rimmed baking sheet with parchment paper.On a floured work surface, roll out the puff pastry into a rectangle .
Transfer the dough to the baking sheet.Arrange fig slices and half of cheese on top.
Bake until the crust puffs, about 15 minutes.Toss arugula with a splash of olive oil and salt and pepper, to taste. Top tart with arugula and prosciutto pieces.