Oca, or New Zealand yam, is a root vegetable similar in size to a small potato. It has a waxy texture and a tangy, slightly sweet flavor and can be eaten raw, boiled, roasted, or fried.
Sea kale is a perennial vegetable that produces edible leaves, shoots, and roots. The flavor is mild, with a hint of sweetness, and the texture is similar to that of asparagus.
Salsify is a long, tapered root vegetable with a creamy white interior. When cooked, it has a mild, oyster-like flavor, making it a fantastic addition to soups and stews.
Chayote, also known as vegetable pear, mirliton, christophine, and choko, is a vigorous vining plant that produces an abundance of pear-shaped green fruits.
Cucamelons, often called Mexican sour gherkins or mouse melons, are delicious, grape-sized fruits that remain relatively unknown to most home gardeners.