Preheat oven to 350 degrees F. Spray a large baking dish (I used a roasting pan) with cooking spray. Set aside.

In a large bowl, combine the beef, bread crumbs, eggs, Worcestershire sauce, 1/4 cup of the cream of mushroom soup and onion. From into 8 oval-shaped patties. Place in prepared pan, sprinkle with pepper to taste and bake for 15 minutes.

Meanwhile, combine the remaining cream of mushroom soup, with the beef broth in a medium saucepan and heat until hot. Combine the cornstarch and water in a small bowl. Add to the soup mixture. Stirring constantly with a wire whisk, bring to a boil over medium heat and boil for 2 minutes or until slightly thickened. Season with additional salt and pepper, if desired. Pour gravy over beef patties. Top with sliced mushrooms.

Return pan to the oven and continue to bake an additional 10-15 minutes or until beef patties are fully cooked.

Best served hot with mashed potatoes and your favorite veggies!