Homemade hamburger steak with onion sauce

Mix ground beef, bread crumbs, egg, Worcestershire sauce, seasoned salt, onion powder, garlic powder, and ground black pepper together in a large bowl until combined.

Form into 8 balls and flatten into patties.

Heat oil in a large skillet over medium heat.

Add patties and thinly sliced onion.

Fry until patties are nicely browned, about 4 minutes per side. Transfer beef patties to a plate.

Sprinkle flour over onions and drippings in the skillet. Stir in flour with a fork.

Gradually mix in beef broth and cooking sherry.  Season with seasoned salt.

Simmer and stir over medium-low heat until gravy thickens, about 5 minutes.

Reduce heat to low, return patties to the gravy, cover, and simmer until cooked through, about 15 minutes.