The cheapest vegetable in Japan, bean sprouts or moyashi
They were introduced from Thailand and Vietnam. In Japanese, moyashi-kko means “so sheltered” because of their thinness and whiteness.
There are so many different ways to cook bean sprouts, stir frying, boiling and so on. Just for one dollar, you cannot get anything in Japan, but you can get bean sprouts, not only one bag but 5 bags!!