Season ground beef with salt and pepper and form into patties. Cook on a grill or in a skillet over medium-high heat until cooked through. Place a slice of cheddar cheese on top of each patty during the last minute of cooking. Toast buns and spread with mayonnaise and ketchup. Top each patty with lettuce, tomato, and onion slices, and serve on the toasted buns.\n\n
How do you make a classic cheeseburger?