Steps
1. In a bowl, combine cooked quinoa and chickpeas.
2. Add cherry tomatoes, cucumber, red onion, olives, and parsley to the bowl.
3. In a small separate bowl, whisk together tahini, lemon juice, olive oil, salt, and pepper until smooth.
4. Pour the dressing over the quinoa mixture and toss gently to combine.
5. Sprinkle feta cheese on top if using.
6. Serve immediately or chill for 10 minutes for flavors to meld.