Watercress is a cruciferous vegetable that belongs to the mustard family. It has small leaves and the stems have a peppery flavor. Watercress is the most ancient of green vegetables known to man and its use can be traced back to the Persians, Greeks and Romans. The delicious, peppery flavor of watercress is great when you have to spice up soups like minestrone or vegetable soups, casseroles, dips, entrees and salads. It also makes a great addition to most sandwich fillings. This bright green, leafy vegetable can also be consumed in a juice form or used as a garnish. It is recognized as a super-vegetable due to its rich content of vitamins and minerals. You can find watercress in specialty grocery stores or at Farmer’s Markets. Watercress packs a significant amount of nutrition. For example, one cup of watercress contains 4 calories and has no fat. It has 106 percent of the Recommended Dietary Allowance, or RDA, for vitamin K,…