• Wash and dry produce.

• Slice tomato and mozzarella into 1/4-inch-thick rounds. Season tomato with salt and pepper. Halve ciabattas. Drizzle cut sides of each ciabatta with olive oil; season with salt and pepper. Toast until golden if desired.

• Spread mayonnaise onto cut sides of ciabattas. Layer bottom halves of ciabattas with tomato, prosciutto, and mozzarella. Drizzle mozzarella with balsamic glaze. Close sandwiches.

• Halve sandwiches on a diagonal; divide between plates and serve.