Crush the Saltines in a ziplok bag until finely crushed. Thinly slice the onion. Preheat a skillet to medium.

Mix together the beef, egg, crushed saltines, pepper, paprika, onion powder, garlic powder, and Worchestershire sauce. Form this mixture into 8 balls and flatten into patties.

Heat the oil. Fry the patties and onion in the oil until patties are nicely browned, about 4 minutes per side. Remove the beef patties to a plate, and keep warm.
Step 3

Sprinkle flour over the onions and drippings in the skillet. Stir in flour, scraping bits of beef off of the bottom as you stir. Gradually mix in the beef broth and sherry. Season with seasoned salt. Simmer and stir over medium-low heat for about 5 minutes, until the gravy thickens. Turn heat to low, return patties to the gravy, cover, and simmer for another 15 minutes.