Hamburger steaks with onion gravy

Ingredients

1lb. ground beef

1 egg

1/3 cup bread crumbs

1/2tsp. black pepper

1 tsp. salt

1/2 tsp. onion powder

1 clove garlic minced

1tsp. Worcestershire sauce

1tbsp. oil

1 1/2 cup thinly sliced onion

2tbsp. all-purpose flour

1 cup beef broth

1/2tsp. salt