Creating Hamburger Steaks with Onion Gravy is a straightforward process. Follow these steps to achieve the perfect dish:

1. Prepare the Patty Mixture: In a large bowl, combine the ground beef, breadcrumbs, egg, chopped onion, minced garlic, Worcestershire sauce, salt, and pepper. Mix until well combined.

2. Shape the Patties: Divide the mixture into 4 equal portions and shape them into oval patties.

3. Brown the Patties: In a large skillet, heat the vegetable oil over medium-high heat. Once hot, add the patties and cook for about 3-4 minutes per side or until browned and cooked through. Remove from the skillet and set aside.

4. Cook the Onions: In the same skillet, add the sliced onions and cook over medium heat. Stir occasionally until the onions are soft and caramelized, about 8-10 minutes.

5. Make the Gravy: After the onions are caramelized, add the beef broth and soy sauce to the skillet. Stir to combine and bring to a simmer.

6. Thicken the Gravy (Optional): If you prefer a thicker gravy, mix cornstarch with a little water to make a slurry. Add to the gravy, stirring until it thickens.

7. Return the Patties: Place the cooked patties back into the skillet, spooning some of the gravy over them. Simmer for an additional 5-7 minutes.

8. Garnish: Once everything is heated through, remove from heat and garnish with fresh parsley.

9. Serve Immediately: Plate the Hamburger Steaks with Onion Gravy, ensuring to spoon extra gravy over the patties.

10. Enjoy! Serve with mashed potatoes, rice, or your preferred side dish.

By following these steps, you can create an incredible meal that surpasses anything you might find in a restaurant.