CORN SALAD Corn salad, mache, lamb's lettuce, field salad, field lettuce are all names for a salad green of the valerian family. It is used in salad mixes together with other greens such as mustard leaves, rocket, dandelion, frisee, etc. It can also be cooked as for spinach. (The lamb's lettuce name comes from it's resemblance to the size and shape of a lamb's tongue!). This green has been used for thousands of years.