Preheat your oven to 400F and line a baking sheet with parchment paper.
Grate the Parmigiano Reggiano and add 1/2 cup of the cheese to the baking sheet in a mound formation.
Lightly pat the cheese down and transfer the baking sheet into the oven to cook for five minutes until crispy.
Once done, remove from the oven and allow it to cool completely.
Meanwhile, prepare the salad by adding the romaine lettuce, grilled chicken, garlic croutons, Caesar dressing, and remaining grated cheese to a chopping board.
Chop all the ingredients very finely, then transfer to a large bowl.
Place the giant parmesan crisp on top, garnish with black pepper, and serve immediately.