Most squashes are annuals, vines and dioecious, fruit is a pepo which is an accessory fruit produced from an inferior ovary, the skin or rind is composed of ovary wall and perianth. Rumors of toxic nature of tomatoes persisted until 1820. Tomatoes were not important until processing industry developed to produce canned and bottled products - juice, whole tomatoes, paste, catsup. Plants are outbreeding perennials, selection has been for self-pollination. Cherry tomatoes are closer to wild types than large-fruited cultivars.
Fruit is a berry.
Eggplant - Solanum melangena , native to India or China. Important to Indian diet but not widely used in other cultures. Coconuts Cocos nucifera - monocot, very imporant plant in tropics, used for oil, fiber, food and drink. Origin is controversial since coconuts can be dispersed by ocean currents. Coconuts are monecious, mature fruit contains one seed which is the largest one known.