In a small bowl, whisk together mayonnaise, ketchup, sweet pickle relish, sugar, white vinegar, and black pepper. Refrigerate until ready to serve.

Bake the frozen fries in the oven according to the package instructions until golden and crispy.

Heat olive oil in a large skillet over medium-high heat. Add lean ground beef. Season with onion powder, garlic powder, salt, and pepper. Cook until the beef is browned and no pink remains.

Place the cooked fries in an oven-safe dish. Top with the browned beef and sprinkle shredded cheddar cheese evenly over the top. Broil for 2-3 minutes until the cheese is melted.

Drizzle the chilled burger sauce over the dish and garnish with shredded lettuce, diced tomato, diced red onion, and diced pickles.

Serve immediately while warm and enjoy your delicious cheeseburger fries!