Eggplant Parmigiana Heroes

INGREDIENTS

• For tomato sauce:
• 1 1/2 pounds tomatoes, chopped
• 2 tablespoons extra-virgin olive oil
• 1 medium onion, chopped
• 5 garlic cloves, chopped
• 1/4 teaspoon hot red pepper flakes
• 1/3 cup grated Parmigiano-Reggiano
• 4 (6-inch) hero or hoagie rolls, split
• 1/4 cup extra-virgin olive oil, divided
• 2 (1-pound) eggplants
• 1/2 pound grated provolone or fresh mozzarella
• 1 cup basil leaves, chopped