Use Persian cucumbers for a sweeter, less bitter flavor and thinner skin. Chop vegetables uniformly for balanced bites. Chill the salad for at least 30 minutes to enhance flavors and soften the onion's sharpness. To mellow onion flavor, soak chopped red onion in cold water for 10 minutes before mixing. Fresh parsley is best but cilantro or mint can be alternatives. Keep the salad cold and serve fresh. Variations include adding fresh herbs, radishes, sumac, chili flakes, pomegranate molasses, yogurt, or cooked grains.