Preheat your oven to 475°F (245°C) to ensure a crispy pizza crust.
Roll out the pizza dough on a floured surface to your desired thickness (about 12 inches in diameter works well). Transfer it to a pizza stone or baking sheet.
In a bowl, mix the cooked pulled chicken with the BBQ sauce until well coated. Spread the ranch dressing evenly over the rolled-out pizza dough.
Scatter the BBQ chicken mixture over the ranch-dressed dough.
Evenly sprinkle shredded mozzarella cheese over the top.
Add the thinly sliced red onions and corn kernels for extra flavor and crunch.
Drizzle a little olive oil over the top and season with salt and pepper to taste.
Bake in the preheated oven for 12-15 minutes, or until the crust is golden and the cheese is bubbly.
Once baked, remove the pizza from the oven and let it cool for a minute before slicing.