In a large bowl, combine ground beef, bread crumbs, chopped onion, egg, Worcestershire sauce, garlic powder, salt, and black pepper. Mix until just combined.

Form Patties

Divide the mixture into four equal portions and form each portion into a patty about 1 inch thick.

Cooking Patties

Heat the Pan

In a large skillet over medium heat, add a bit of oil if needed and heat until hot.

Cook the Patties

Add the beef patties to the skillet and cook for about 5-6 minutes on each side or until they reach your desired doneness. Remove patties from the skillet and set aside.

Gravy Preparation

Sauté Onions

In the same skillet, melt butter over medium heat. Add sliced onions and sauté until soft and translucent, about 5 minutes.

Prepare Gravy

Stir in beef broth and soy sauce. Bring to a simmer.

Thicken Gravy

In a small bowl, mix cornstarch with water to create a slurry. Add this to the simmering gravy and stir until thickened. Season with salt and black pepper.

Serving

Combine and Serve

Place cooked patties back in the skillet with the gravy, allowing them to heat through for a couple of minutes. Serve hot with the gravy poured over the top.