In a large mixing bowl, gently combine ground beef, grated onion, and Worcestershire sauce until just blended.

Divide the beef mixture into four equal portions and shape into patties about ¾-inch thick with a ½-inch indent in the center.

Refrigerate formed patties for at least 20 minutes to hold shape and enhance flavor.

Preheat grill to medium heat or heat a skillet over medium-high heat, ensuring grates are clean and lightly oiled.

Season both sides of each patty with salt and black pepper.

Cook the patties on the grill or skillet for 4 to 6 minutes per side, ensuring an internal temperature of 160°F.

Let the patties rest for 5 minutes on a plate before serving.

Assemble rested patties on toasted buns and add your favorite toppings.