1. Step
Place oven rack in middle position; preheat to 375°F. Coat a 13-by-9-inch (3-quart) broiler-safe baking dish with cooking spray. Combine fontina, basil, sun-dried tomatoes, 2 tablespoons Parmesan, crushed red pepper and salt in a medium bowl. Stir panko, oregano, garlic powder and the remaining 2 tablespoons Parmesan together in a small bowl.