01 -
Heat the oven to 375°F. Line a large baking sheet with parchment paper.
02 -
Melt the butter in a skillet over medium heat. Add the red onion and cook for 3-4 minutes until softened. Remove from the heat and let it cool slightly.
03 -
In a bowl, toss the shredded chicken with the barbecue sauce and cooked onion until evenly coated.
04 -
Roll the pizza dough on parchment into a roughly 10 by 14 inch rectangle. Lay the provolone slices down the center, leaving a clean border, then spoon the BBQ chicken mixture over the cheese.
05 -
Fold the long sides over the filling and pinch the seam closed. Tuck the ends underneath, then turn the roll seam-side down on the parchment.
06 -
Brush the outside with beaten egg. Sprinkle with Italian seasoning and Parmesan, then cut 4-5 shallow diagonal slits across the top.
07 -
Bake for 22-25 minutes, until the crust is deep golden and firm on the bottom. Rest for 5-10 minutes before slicing. Serve with extra barbecue sauce.