Step 1

In a large bowl gently mix together the ground sirloin, egg, Worcestershire sauce, garlic powder, onion powder, salt, pepper, and breadcrumbs.

Step 2

Form the meat mixture into 4 balls, then flatten into 1-inch thick patties.

Step 3

Heat vegetable oil in a large skillet over medium heat.

Step 4

Add the hamburger patties to the skillet. Fry the patties for about 2-3 minutes on each side. Remove to a plate and cover with foil to keep warm.

Step 5

Add the onions and mushrooms to the skillet and sprinkle the flour over them. Stir the flour in, cooking for one minute.

Step 6

Slowly pour the beef broth into the skillet using a wooden spoon to scrape the brown bits from the bottom of the pan.

Step 7

Reduce heat to simmer and cook the gravy for 3-5 minutes until thickened.

Step 8

Add the patties back to the pan, simmer for 10 more minutes until beef is cooked through and gravy is thickened.