Corned Beef and Cabbage Pizzas

Name: Corned Beef and Cabbage Pizzas
Ingredients: 1 pound Yukon Gold potatoes (2 to 4), very thinly sliced (about 1/8 inch); 2 tablespoons extra-virgin olive oil; Kosher salt and freshly ground pepper; 4 cups very thinly sliced green cabbage (from about 1/4 head); All-purpose flour, for dusting; 1 pound pizza dough, cut into 4 pieces, at room temperature; 1 cup shredded white cheddar cheese (about 4 ounces); 1 1/2 cups shredded low-moisture mozzarella cheese (about 6 ounces); 4 ounces cooked corned beef, chopped; Chopped fresh parsley and grated Parmesan cheese, for topping