30 minutes or fewer
A powerhouse ingredient such as deeply flavored red miso paste (instead of the milder white or yellow varieties) is the key to this super-easy soup. Just don’t boil it—boiling brings out a bitter taste in miso and kills the healthful probiotic enzymes that are so good for you.
Simmer broth in small saucepan over medium-high heat. Add tofu, greens and green onions, reduce heat to medium, and cook about 5 minutes, or until greens are just wilted.
Stir in miso, and barely simmer (do not boil). Remove from heat, and serve immediately.