→ Sauce
02 - 2 tablespoons extra virgin olive oil
03 - 3 cloves garlic, thinly sliced
04 - 1 small red onion, finely diced
05 - 14 ounces canned crushed tomatoes
06 - 5.5 ounces canned tuna in olive oil, drained and flaked
07 - 1/2 cup pitted black olives, sliced
08 - 2 tablespoons capers, rinsed and drained
09 - 1/2 teaspoon dried oregano
10 - 1/4 teaspoon red pepper flakes (optional)
11 - Salt, to taste
12 - Freshly ground black pepper, to taste
13 - 2 tablespoons fresh flat-leaf parsley, chopped
14 - Zest of 1 lemon