Italian flat-leafed parsley is widely used in European, Middle Eastern, and American cooking.This parsley has, of course, flat leaves, which distinguish it from the better-known curly-leafed parsley. At first the foliage might be easily confused with cilantro. However, its flavor is distinctly parsley, and it is favored for its deep flavor, which some say holds up better in cooking than curly parsley. It is popular in Mediterranean and Middle Eastern cuisine. Easy to chop, the nutritious flat leaves are high in iron and in vitamins A, C, and E. A high chlorophyll content makes it a natural breath sweetener, too.