Bok Choy with Mixed mushrooms Soup

6 cups chicken broth

1 teaspoon freshly grated ginger

1 teaspoon soy sauce

Dash pepper

6 ounces enoki mushrooms

6 ounces oyster mushrooms

3 heads baby bok choy, sliced

Heat broth. Add ginger, soy sauce and pepper.  Clean and separate mushrooms.  Add bok choy and mushrooms to broth.  Simmer until bok choy is crisp, but tender.