KIWANO This horned melon is nicknamed blowfish fruit. You can spot it in your supermarket by its orange skin. Its lime-green flesh tastes like a mix of cucumber, kiwi, and banana. "Cut it in half and squeeze from the bottom so that small, jelly-like sacs come to the surface," suggests Dimitriou. "You can lick or suck up each sac of fruit and seed." Rich in vitamin C, iron, and potassium and made mostly of water, they're ideal for rehydrating on a warm day.