Pizza with Arugula and Mozzarella

Name: Pizza with Arugula and Mozzarella
Ingredients: 1/4 Pizza Dough (recipe follows); Cornmeal for sprinkling; 8 slices fresh mozzarella, each one about 1/4 inch thick and 1 1/2 inches in diameter; 1/4 teaspoon coarse salt; 1/2 cup very firmly packed fresh arugula; 1 1/2 teaspoons extra-virgin olive oil; 1/2 cup milk, at room temperature; 1 cup water, almost hot to the touch (about 125 degrees); 2 tablespoon dry yeast or 1 1/2 ounce fresh yeast; 2 2/3 cups sifted Tipo 00 flour or cake flour; 1/3 cup sifted all-purpose flour; 3/4 teaspoon fine salt; Olive oil for oiling the bowl