Possible Clues:

• Curly-leaved plant used as salad
• Salad ingredient
• Envied the salad green badly
• Salad plant similar to chicory
• What Martha Stewart braises with mustard vinaigrette
• Kll Paul's salad plant
• Salad plant with curly leaves
• Good source of vitamin A
• Salad plant when halved has to go into water
• Mixed greens green