In a small bowl, combine all the dressing ingredients, seasoning with salt and pepper. Transfer 1 tablespoon of the dressing to a small bowl, add the chickpeas, and stir. Spoon the remaining dressing into a bowl and refrigerate, along with the bowl of chickpeas, until ready to dress the salad.
In a large salad bowl, combine all the salad ingredients. Spoon the dressing on the salad, toss until well coated, and serve.