I like to think of this as a Japanese grandma’s version of chicken soup: the perfect cure to whatever ails you, be it the sniffles or a stressful day. As is, this soup is vegetarian, but feel free to change things up based on your mood. Swap chicken or beef stock for the vegetable. Stir in smoked brisket, pulled pork, shredded chicken, or tofu cubes. what I love even more than the versatility of this soup is that it can be made in less than 30 minutes.