In a large bowl, add the drained chickpeas, cooked quinoa, diced chicken, cucumber, tomatoes, kalamata olives, red onion, and radishes. Crumble the feta cheese on top and ½ of the dill and parsley.
In a small bowl, whisk together the dressing ingredients. Also add in the remaining dill and parsley. Whisk until combined.
Drizzle dressing over the salad; gently toss.
Adjust seasoning and serve or refrigerate overnight.