Simple Salisbury Steak

I have made this recipe a couple of times and it has turned out pretty good. I left out the browning sauce and fresh mushrooms though. 

Servings: 6

1 egg
1/3 cup dry bread crumbs
1 (10.75 ounce) can reduced-fat, reduced-sodium condensed cream of mushroom soup, undiluted, divided
1/4 cup finely chopped onion
1 pound lean ground beef
1/2 cup fat-free milk
1/4 teaspoon browning sauce (optional)
1/4 teaspoon salt
1 1/2 cups sliced fresh mushrooms

Directions:

In a bowl, combine the egg, bread crumbs, 1/4 cup soup and onion. Crumble the beef over mixture and mix well. Shape into six patties. In a large nonstick skillet, brown the patties on both sides; drain.
In a bowl, combine the milk, browning sauce if desired, salt and remaining soup; stir in mushrooms. Pour over patties. Reduce heat; cover and simmer for 15-20 minutes or until meat is no longer pink.