Ingredients

1/2 pound linguine

One 6-ounce can tuna, packed in water, drained

1 1/2 cups cherry tomatoes, quartered

1/3 cup pitted brine-cured olives, such as Kalamata (about 16)

1/3 cup pitted ripe green olives, such as Picholine (about 18)

Finely grated zest of 1 lemon

2 garlic cloves

2 tablespoons plus 1/3 cup roughly chopped fresh flat-leaf parsley, plus whole sprigs for garnish

1/2 teaspoon freshly ground black pepper

1/4 teaspoon crushed red-pepper flakes

Preparation

Bring a large pot of water to a boil. Add linguine; cook according to package instructions, stirring occasionally, until it is al dente. Remove from heat, and transfer linguine to a colander; let drain, reserving 1/4 cup cooking water.

Make tapenade: In the bowl of a food processor fitted with the metal blade, combine olives, lemon zest, garlic, 2 tablespoons parsley, black pepper, and red-pepper flakes. Process until mixture is finely chopped and combined.

Transfer linguine to a large serving bowl, and toss with reserved cooking water. Add tapenade, tuna, tomatoes, and remaining 1/3 cup chopped parsley; toss well to coat. Serve immediately, garnished with parsley sprigs.