Salad greens are a type of leafy vegetable that are often used in salads and other dishes. Escaroles, endives, cress, and chards are all types of salad greens. Escaroles is a type of lettuce with broad, slightly bitter leaves. Endives are a type of chicory with a slightly bitter flavor. Cress is a type of mustard green with a peppery flavor. Chards are a type of beet green with a mild flavor. All of these salad greens can be used to add flavor and texture to salads and other dishes.