The primary ingredient in a traditional cheeseburger is ground beef. This classic American sandwich consists of a ground beef patty, usually grilled or pan-fried, served in a sliced bun. The beef patty is typically seasoned with salt and pepper, contributing to its flavor. While the cheeseburger is defined by its inclusion of cheese, often cheddar, American, or Swiss, the ground beef remains the star ingredient. Additional toppings may include lettuce, tomato, onion, pickles, and condiments like ketchup and mustard. The cheeseburger is a beloved staple in fast-food culture and is enjoyed by many around the world.