Vegetable Tarte Tatin

Name: Vegetable Tarte Tatin
Ingredients: 2 medium Yukon gold potatoes, peeled and cut into 1/2-inch-thick rounds; 2 medium sweet potatoes, peeled and cut into 1/2-inch-thick rounds; 2 medium parsnips, peeled and cut into 1/2-inch-thick rounds; 1 small onion, cut into 1/2-inch-thick rounds; 4 cloves garlic, halved; 3 tablespoons extra-virgin olive oil; Kosher salt and freshly ground pepper; 3/4 cup sugar; 1 tablespoon white wine vinegar; 1 tablespoon small fresh sage leaves; 1 tablespoon fresh oregano leaves; 6 ounces mozzarella, grated (about 1 cup); 1 8 .5-ounce sheet frozen puff pastry, thawed; All-purpose flour, for dusting