Mild Miso Soup
Strain the broth through a fine sieve. Remove the mushrooms from the sieve and reserve. Discard the remaining vegetables. Return the broth to the saucepan over low heat. Thinly slice the mushrooms and add them to the broth along with the remaining scallions. Stir in the miso thoroughly, never allowing the mixture to boil. Stir in the tofu. Serve warm.