Heat oven to 400°F. Place silicone baking mat on cookie sheet with sides.
On baking mat, unroll dough into 1 large rectangle; press perforations and edges to seal. Bake 8 to 10 minutes or until light golden brown.
Meanwhile, in medium bowl, place chicken and barbecue sauce. Using 2 forks, toss until chicken is coated with sauce.
Spoon and spread chicken mixture evenly over partially baked crust. Sprinkle with cheese.
Bake about 5 minutes longer or until cheese is melted. Cut pizza into 8 squares. Sprinkle with parsley.