Begin by hard cooking the eggs. In a medium pot, bring cold water to a simmer. Carefully add eggs to the pot with a slotted spoon. Let simmer for 12 minutes, careful not to let eggs boil.
While eggs are cooking, prepare an ice bath. In a medium-sized bowl, fill it with ice and water.
When eggs are finished cooking, carefully transfer them with a slotted spoon into the ice bath. Let cool while you prepare the tuna salad.
In a large bowl, add the drained tuna, breaking up uniformly. Stir in olive oil, fresh herbs, salt, pepper, granulated garlic and lemon. Gently fold in the tomatoes, cucumbers and olives.
Peel and cut the eggs into 1/8ths. Gently fold in to the tuna salad and chill until very cold and flavors have melded, at least 4 hours or ideally, overnight.
Serve salad chilled with crackers or crostini toasts on the side.