01 - Preheat oven to 475°F. If using a pizza stone, place it in the oven during preheating.
02 - On a lightly floured surface, roll or stretch pizza dough into a 12-inch round. Transfer to a parchment-lined baking sheet or pizza peel dusted with cornmeal.
03 - Brush dough lightly with olive oil. Spread 1/2 cup BBQ sauce evenly over the base, leaving a small border for the crust.
04 - In a bowl, toss cooked chicken with 2 tablespoons BBQ sauce until evenly coated.
05 - Sprinkle half of mozzarella over BBQ sauce. Distribute BBQ chicken, red onion slices, and bell pepper evenly.
06 - Top with remaining mozzarella and smoked Gouda or cheddar cheese.
07 - Transfer pizza to hot oven or preheated pizza stone. Bake for 12–15 minutes until crust is golden and cheese is bubbling.
08 - Remove from oven and let cool for 2 minutes. Drizzle with extra BBQ sauce and sprinkle with fresh cilantro if desired. Slice and serve hot.