Salisbury Steak - cooking recipe

Ingredients

1 (10 1/2 ounce) can condensed cream of mushroom soup
1 (7/8 ounce) package brown gravy mix
1 lb ground beef
1/2 cup dry breadcrumbs
1/4 cup onion (finely diced)
1 egg, beaten
1 teaspoon Worcestershire sauce
salt (to taste)
pepper (to taste)
1 tablespoon margarine or 1 tablespoon butter
1 1/2 cups sliced mushrooms
1 medium onion (sliced thin)
1 teaspoon margarine or 1 teaspoon butter

Preparation

In large bowl, mix thoroughly 1/2 cup soup, the beef, bread crumbs, onion,worcestershire, salt, pepper to taste and egg.
Shape firmly into 5 patties, about 3/4 inch thick.
In large skillet over medium-high heat, melt margarine and cook 3 or 4 patties until browned on both sides, remove.
Repeat with remaining patties and remove, spoon off fat.
While patties are browning mix brown gravy mix with 1 cup of cold water.
In same skillet, patties removed, add remaining mushroom soup, brown gravy and mushrooms; bring to boil.
Return patties to skillet, reduce heat to low cover; simmer 20 minutes or until patties are thoroughly cooked and no longer pink, turning patties occasionally.
While patties are cooking, saute sliced onion in 1 teaspoon of butter over medium heat stirring often until soft and caramelized.
Serve patties topped with sauteed onions and mushroom sauce spooned over.
I serve this with mashed potatoes, you could use egg noodles instead.