Heat oil in a deep fryer or large pot to 350°F (175°C). Add French fries and fry until golden brown and crispy, about 5-7 minutes. Remove fries and drain on paper towels. Season with salt.

Cook the Burger Patties

In a bowl, combine ground beef, salt, and black pepper. Form into two equal patties. Preheat a grill or skillet over medium-high heat. Cook patties for about 3-4 minutes on one side, then flip and top each with a slice of cheddar cheese. Cook for an additional 3-4 minutes, or until cheese is melted and beef is cooked to desired doneness.

Assemble the Burgers

Toast the burger buns if desired. Place a lettuce leaf on the bottom half of each bun, followed by a cooked burger patty, tomato slice, onion slice, pickles, and ketchup. Top with the other half of the bun.

Serve

Plate the cheeseburgers alongside a serving of French fries. Enjoy your meal!