Summer salads are the best salads of all. Now vegetables and fruits are at their freshest, often imported from no farther than your own garden. Such perfect produce needs only a splash of vinaigrette and a sprinkle of herbs to delight the palate and excite the eye. Tomatoes, potatoes, corn—the most ordinary of foods—become works of art. Most summer salads require little or no cooking, and when served at room temperature reveal more of their subtle flavors.