In a skillet over medium heat, brown the ground beef (~ 10-15 minutes)
Add half the chopped onion, ketchup, dill pickle, mustard, and mix well
Arrange the chopped lettuce on a large serving platter, spoon beef mixture over the lettuce, and drizzle with Special Sauce
Top the salad with the additional diced onion, plum tomatoes, shredded cheese, and croutons
In a small bowl, add the honey and vinegar.
Warm in the microwave for 10-15 seconds to dissolve
In a small bowl, combine the dissolved honey/vinegar mix, along with all of the ingredients; stir well.
Place dressing in a covered container and refrigerate for several hours, stirring occasionally, allowing the flavors blend.