Cook pasta according to package instructions and drain.
Brown the ground beef in a skillet over medium heat until fully cooked, then drain any excess fat.
In a large bowl, combine cooked pasta, cooked beef, shredded lettuce, diced tomatoes, and pickles.
In a separate bowl, whisk together mayonnaise, mustard, apple cider vinegar, salt, and pepper until smooth.
Pour the dressing over the pasta mixture and gently toss to combine.
Add the shredded cheddar cheese and gently fold into the salad.
Cover and refrigerate for at least 30 minutes before serving.
Before serving, taste and adjust seasoning if necessary.