Salad dressings are a wide variety of delicious and nutritious ways to put a healthy twist on salads. They come in many forms, from creamy-based, green, and fruit-based to spicy, tangy, and herb-based. The dressing can be a dip, a drizzle, a sauce, or a slurry. Dressings made from yogurt or cream work well with pungent salad greens such as arugula or watercress.