Plantains have a mild squash-like or potato-like or sweet potato-like flavor with a faint sweetness reminiscent of a banana. Well, you'll have to taste the plantain to decide.
Exactly what flavor you ascribe to the plantain will, no doubt, have something to do with how it's been prepared. The plantain is a fruit--a very close cousin of the banana--that is eaten as a vegetable, except when it's served as a dessert.
Plantains can be chunked and cooked in soups or stews. They can be sliced and fried or mashed like a potato. They can be boiled or sautéed and served as a side dish, and they can be baked in their skins and served as a dessert.The message is clear: the plantain is versatile and can land on either the sweet or savory side of the table.