Layer half of the lettuce, tomato, cucumber, onion, olives, parsley, mint, and the feta to a large bowl; sprinkle with half the lemon juice. Then layer on the other half of the lettuce, tomato, cucumber, onion, olives parsley, mint, and feta; sprinkle with other half of lemon juice.
Serve with kalamata dressing on the side or drizzle with dressing and gently toss right before serving.