Prepare the Patties:

• In a bowl, mix ground beef, breadcrumbs, egg, milk, salt, and pepper. This ensures a well-combined and flavorful patty mixture, creating a consistent texture.
• Form into 4-6 patties. Shape the mixture into evenly sized patties, ensuring even cooking.

Brown the Patties:

• Brown patties in a skillet over medium heat. This sears the patties and adds flavor, creating a rich taste.
• Remove and set aside. This allows the patties to rest while you prepare the gravy, preventing overcooking.

Sauté the Onions:

• In the same skillet, sauté onions until soft. This caramelizes the onions, adding sweetness and depth to the gravy, creating a rich sauce.
• Sprinkle flour over onions, cook for 1 minute. This creates a roux, which thickens the gravy, ensuring a smooth texture.

Make the Gravy:

• Gradually stir in beef broth, Worcestershire sauce, and thyme. This creates a rich, savory gravy, enhancing the flavor profile.
• Bring to a simmer. This allows the flavors to meld and the gravy to thicken, creating a rich sauce.

Simmer the Patties:

• Return patties to skillet, cover, and simmer for 15 minutes, or until the meat is cooked through and the gravy thickens. This ensures the patties are cooked and the gravy is rich and flavorful, creating a complete dish.
• Ensure the meat is cooked through. You can check this by cutting into a patty; it should be cooked all the way through, no pink should remain. This ensures safe consumption.