In a skillet, brown the ground beef over medium heat, seasoning with salt and pepper.
Chop the romaine lettuce and place it in a large salad bowl.
Halve the cherry tomatoes and add them to the bowl.
Dice the pickles and add them to the salad.
Finely chop the red onion and sprinkle it over the salad.
Once the beef is cooked, drain any excess fat and let it cool slightly.
Add the cooked beef to the salad bowl.
Sprinkle shredded cheddar cheese on top of the salad.
In a separate bowl, mix mayonnaise, ketchup, and mustard to create the dressing.
Drizzle the dressing over the salad and toss gently to combine.