Preheat your oven to 350°F (175°C).
In a bowl, combine the shredded chicken and barbecue sauce, mixing well.
Season the mixture with salt and pepper to taste.
Place the sandwich rolls on a baking sheet, cut side up.
Fill each roll with the shredded chicken mixture.
Sprinkle shredded cheese over the top of each sandwich.
Bake in the oven for about 10 minutes, until the cheese is melted.
Remove from the oven and top with pickles and diced onions.
Garnish with fresh parsley.
Serve warm and enjoy!