Preheat oven to 425 degrees F. and line two baking sheets with parchment paper.
Divide the dough in half and using a rolling pin on a lightly floured counter, roll each half of the dough into an oval shape about 1/3 of an inch thick.
Gently place each rolled piece of dough on the prepared baking sheets and brush with olive oil.
Sprinkle with oregano and then use the tines of a fork to prick the dough evenly over the top.
Bake for 15 to 20 minutes or until golden brown and puffy in spots.
Immediately arrange the tomatoes, then the arugula on top.
Drape the prosciutto over the arugula and then arrange the cheese shavings on top.
Drizzle with extra virgin olive oil and salt, cut into eight pieces, serve and enjoy!