Beefy French Onion Noodle Soup

Name: Beefy French Onion Noodle Soup
Cook time: 1 h
Total time: 1 h
Cuisine: French
Ingredients: 2 cup sliced fresh mushrooms; 0.25 cup vegetable oil; 3 cup thinly sliced onions; 10 ounce beef sirloin, trimmed and cut into very thin strips; Salt and black pepper; 2 32 ounce boxes reduced-sodium beef broth; 0.333 cup dry white wine (optional); 1 tablespoon Worcestershire sauce; 0.25 teaspoon freshly ground black pepper; 4 ounce very wide homestyle egg noodles, broken if long; 6 slices French bread, toasted (optional); 0.75 cup shredded Swiss, Gruyère, or Jarlsberg cheese (3 ounces) (optional)