Take your tuna salad to the next level with a Mediterranean twist. Start by combining drained tuna, diced cucumber, cherry tomatoes, sliced Kalamata olives, and crumbled feta cheese in a bowl. In a separate small bowl, whisk together olive oil, lemon juice, minced garlic, dried oregano, salt, and pepper to make the dressing. Pour the dressing over the tuna mixture and toss gently to coat. Let the flavors meld together for a few minutes before serving. This Mediterranean tuna salad is bursting with fresh flavors and makes a perfect light lunch or dinner option.