Bring a large pot of salted water to a rolling boil. Add elbow macaroni or rotini and cook according to package instructions until al dente, then drain and rinse under cold water.

In a large skillet over medium heat, add ground beef and cook for about 7-10 minutes until evenly browned. Drain excess fat and cool.

In a medium bowl, combine mayonnaise, ketchup, mustard, and relish to create the special sauce. Whisk until smooth.

In a large mixing bowl, combine cooled pasta, cooked ground beef, diced pickles, diced onions, and cheese. Pour the special sauce over and fold gently until coated.

Cover the bowl and chill in the refrigerator for at least 1 hour before serving.