Divide the ground beef into four equal portions.
Shape each portion gently into a burger patty.
Season both sides with salt and pepper.
Heat a skillet or grill.
Cook the patties until they reach a safe internal temperature.
Add cheese during the final minute so it melts.
Lightly toast the burger buns.
Spread ketchup and mayonnaise on the buns.
Add lettuce, tomato, onion, pickles, and the cooked burger.
Serve immediately.