What is the name of the soup they serve at the Hibachi grill?

I went to our Hibachi today, and I wanted to know what the name of the soup was that they serve there before the main meal. I think I had the name before, I can't remember what it is. If anyone could tell me what it is, and, if possible, throw in a recipe, that'd be great! :]

It seems to be made with onions, chives, shaved mushrooms, and probably chicken broth.

Thanks for any help!What is the name of the soup they serve at the Hibachi grill?
My best guess would be MisoWhat is the name of the soup they serve at the Hibachi grill?
1 3/4 cups Swanson Chicken Stock

# 3 tablespoons lemon juice

# 1 teaspoon dried basil leaves, crushed

# 1 teaspoon dried thyme leaves, crushed

# 1/8 teaspoon ground black pepper

# 4 chicken breast halves, skin removed