Total time: 10 min • Prep: 10 min • Cook: 0 min • Serves: 8 • Difficulty: Easy

Crostini, which means “little toasts” in Italian, are usually just brushed with olive oil. But to perk up the palate, we’ve added a topping with fresh tuna, olives, tomato, and anchovy. For a stronger anchovy taste, substitute three anchovy fillets, rinsed, patted dry, and minced, for the paste. If you find salt-packed anchovies which are available at Greek or Italian markets, use them; they’re far superior in flavor to the usual tinned variety. Use a dark Mediterranean olive - niçoise could be substituted for kalamata - but make sure to choose a variety packed in vinegar rather than oil to save on fat.