Preheat an oven to 500°F, and set an oven rack in the lowest possible position. Lightly coat a pizza pan with nonstick cooking spray.

Stretch pizza dough into a round large enough to fit the pizza pan. Very lightly drizzle the dough with olive oil, using your hands to evenly spread the oil around. Sprinkle dough with a small pinch of kosher salt. Top pizza evenly with grated mozzarella cheese, then spread the sauce over the cheese in 2 concentric circles (see animation above). It may seem like it's not enough sauce but trust me, it is. Season with a sprinkling of kosher salt. Drape prosciutto slices around the surface of the pizza. Finish with several grinds of black pepper.

Transfer pizza to the oven on the lowest rack and cook until the crust is golden brown (bottom and crust) and the cheese is nice and bubbly (9 - 11 minutes).

To serve, top pizza evenly with arugula, shredded Parmesan, a drizzle of olive oil and a few grinds of black pepper. Cut into 8 slices and enjoy immediately!