Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
2         Tablespoons   butter or margarine
4         cups          sliced onion
3         cups          beef broth -- lowfat okay
1 1/2     cups          water
1         Tablespoon    cooking sherry -- optional
1         Tablespoon    Worcestershire sauce
1/4       teaspoon      black pepper
1         dash          dried thyme
1         cup           soft croutons -- optional
1/2       cup           shredded mozzarella cheese -- lowfat okay, optional

Preparation:

-Melt butter in saucepan over low heat. -Add onions and cook 20 minutes, stirring occasionally. -Add beef broth, water, sherry, Worcestershire sauce, pepper, and thyme to pot. -Increase heat and bring to boil, then reduce heat. -Cover and simmer for 5 minutes. -Divide into bowls. -Top with croutons, then mozzarella. -Broil until cheese melts and begins to brown.