Related Clues:

• They have sought-after holes
• Escarole alternative
• Produce purchase
• Good source of vitamin A
• Caesar salad base
• Rabbit food
• Variety of lettuce
• Butterhead, e.g.
• Leafy green
• Antioxidant source
• Iceberg is one type
• Salad ingredient, sometimes
• Kale and spinach
• Leaf source
• Salad vegetable, perhaps