Sweet Potato Chips

Name: Sweet-Potato Chips
Ingredients: 2 tablespoons olive oil; 1 large sweet potato, scrubbed and cut into 1/4-inch-thick slices; 1/2 teaspoon kosher salt; 2 tablespoons unsalted butter; 2 slices whole-wheat bread, ground in a food processor (1 cup); 1/2 cup grated Parmesan (2 ounces); freshly ground black pepper