Pizza Quattro Stagioni

Name: Pizza Quattro Stagioni
Ingredients: 2 Tbs. extra-virgin olive oil, plus more for brushing; 1/4 lb. (125 g) cremini mushrooms, thinly sliced; Kosher salt and freshly ground pepper; 1/2 batch food-processor pizza dough; 1/2 cup (4 fl. oz./125 ml) prepared pizza sauce or tomato sauce; 1/2 cup (2 oz./60 g) grated mozzarella cheese; 1/2 cup (2 oz./60 g) black olives, pitted and halved; 1 jar (5 oz./155 g) marinated artichoke hearts, drained and quartered; 1/4 lb. (125 g) thinly sliced prosciutto; Grated Parmesan cheese for serving