Wash and dry all vegetables thoroughly. Chop the cucumber and red onion, halve the cherry tomatoes. Combine all ingredients in a large salad bowl.

Crumble feta cheese and sprinkle over the salad. Add black olives on top.

In a small bowl, whisk together olive oil, lemon juice, salt, and pepper to make the dressing. Drizzle over the salad and toss gently to combine.