In a mixing bowl, combine ground beef, salt, pepper, and Worcestershire sauce. Mix gently until just combined.

Divide the mixture into 4 equal portions and shape them into patties.

Preheat the grill to medium-high heat.

Place the patties on the grill and cook for about 4-5 minutes on each side, or until they reach an internal temperature of 160°F.

In the last minute of cooking, place a slice of cheese on each patty to melt.

Toast the burger buns on the grill until golden brown.

Layer lettuce, tomato, and pickles on the bottom half of each bun.

Place the cooked patty on top, add ketchup and mustard, then top with the other half of the bun.