Caprese Sandwich

Assemble the sandwiches on the focaccia with the arugula, mozzarella, and tomato slices. Add the roasted tomatoes and a few pickled onions, if desired.
Top with basil leaves and a drizzle of olive oil. Season with salt and pepper.

Ingredient :

4 (3.5-inch) squares Focaccia, sliced in half
Handful arugula
1 (8-ounce) ball fresh mozzarella cheese, sliced
2 large tomatoes, sliced
⅓ cup Roasted Cherry Tomatoes, optional
Pickled Red Onions, optional
Fresh basil leaves
Extra-virgin olive oil, for drizzling
Flaky sea salt and freshly ground black pepper