Tuna Panino with Salsa Verde

Name: Tuna Panino with Salsa Verde
Ingredients: 1/3 cup fresh parsley leaves, packed (1 small bunch); 1 tablespoon capers, drained and rinsed; 2 oil-packed anchovies, finely chopped, optional; 1 clove garlic; 3/4 cup extra-virgin olive oil; Freshly ground pepper; Juice of 1/2 lemon; 1 tablespoon extra-virgin olive oil; Salt and freshly cracked pepper; 2 jars very good quality tuna packed in olive oil (preferably Italian), drained; Zest and juice of 1 lemon; 6 small crusty rolls, like ciabatta, halved lengthwise; 1 tomato, sliced