The Mustard Family Member crossword solutions are Radish (6 letters), ARUGULA (7 letters), Cress (5 letters), and KALE (4 letters). Radish is a root vegetable with a pungent flavor, usually eaten raw in salads. ARUGULA is a leafy green vegetable with a peppery flavor, often used in salads or as a garnish. Cress is a leafy green vegetable with a spicy flavor, often used in salads or sandwiches. KALE is a leafy green vegetable with a slightly bitter flavor, often used in soups or stir-fries. All of these vegetables are members of the mustard family, which is known for its spicy flavor.