• 2 cups thinly sliced fennel bulb
• 2 6-inch focaccias
• 1 1/2 cups shredded or grated mozzarella cheese
• 1 tablespoon thinly sliced fresh sage
• 1 tablespoon chopped fresh thyme
• 2 small Roma tomatoes, thinly sliced, ends discarded
• 3 ounces prosciutto, sliced very thin
• Freshly ground black pepper to taste