“The classic recipe for potato pizza in Italy is quite simple: potato, rosemary, olive oil, and salt,” says vvvindaloo. To make it, lightly toss paper-thin slices of potato in olive oil, rosemary, and sea salt, with an optional tiny bit of either pepperoncini or black pepper. Bake on high until the top and edges are brown.
Other Chowhounds go nontraditional and add some cheese: Gruyère and raclette are favorites. Crushed garlic and caramelized onions are also additions that several hounds recommend. Some also precook their potatoes before adding them to the pizza to ensure they cook through. This allows you to make more toppings-heavy pies too. Agent Orange makes a pizza with pesto, roasted potato rounds, roasted garlic, and a few small dollops of chèvre cheese.
Board Link: how to do potato on pizza?