In a small bowl, whisk together Greek yogurt, Dijon mustard, chives, lemon juice, and mayonnaise. Add salt and pepper. Set aside.

In a large bowl, combine chickpeas, celery, red onion, and cucumber. Mix well.

Pour the dressing over the veggie mixture and fold gently until coated.

Garnish with parsley and serve immediately or let it chill for flavors to deepen.