Escarole has broad pale green leaves with a nutty, bitter taste similar to that of curly endive only with a less bitter bite. The fleshy, dark, outer leaves are more bitter in flavor than the lighter, inner leaves. Cooking will somewhat mellow the bitter flavor of Escarole. Escarole has a crunchy, crisp texture and holds its shape well even when cooked.
Escarole is high in vitamin A which studies have shown can reduce the risk of osteoporosis and cancer. It is also high in vitamin K which aids the body in blood clotting. In addition it contains significant amounts of folate, vitamin C, dietary fiber, calcium, potassium, iron and antioxidants such as flavonoids and lutein.