Southern-Style Hamburger Steak

For the Hamburger Steaks

• 1 ½ lbs ground beef (80/20 preferred)

• ½ cup breadcrumbs

• 1 large egg

• 1 teaspoon salt

• ½ teaspoon black pepper

• 1 teaspoon garlic powder

• 1 teaspoon onion powder

• 1 tablespoon Worcestershire sauce

• 1 tablespoon vegetable oil

For the Onion Gravy

• 2 large onions, thinly sliced

• 2 tablespoons butter

• 2 tablespoons all-purpose flour

• 2 cups beef broth

• 1 teaspoon Worcestershire sauce

• Salt and black pepper, to taste