Creating Spicy Chili Garlic Chicken Pizza is straightforward if you follow these easy steps:

1. Preheat the Oven: Preheat your oven to 475°F (245°C).
2. Prepare the Dough: Roll out the pre-made pizza dough on a floured surface to your desired thickness.
3. Transfer to Pizza Stone or Pan: Place the rolled dough onto a pizza stone or a baking sheet lined with parchment paper.
4. Add Olive Oil: Brush the surface of the dough with olive oil for added flavor and crispiness.
5. Spread the Sauce: Evenly spread the chili garlic sauce over the dough, leaving a small border around the edges.
6. Add Chicken: Distribute the shredded chicken evenly across the sauce.
7. Add Vegetables: Scatter the sliced red bell pepper and red onion over the chicken.
8. Top with Cheese: Sprinkle the shredded mozzarella cheese generously over the top.
9. Add Seasoning: If desired, sprinkle red pepper flakes, salt, and pepper for extra heat and flavor.
10. Bake: Place the pizza in the preheated oven and bake for 15-20 minutes, or until the crust is golden brown and the cheese is bubbling.
11. Garnish: Once baked, remove the pizza from the oven and let it cool slightly. Garnish with chopped cilantro if desired.
12. Slice and Serve: Slice the pizza into wedges and serve hot.

This step-by-step guide ensures that your Spicy Chili Garlic Chicken Pizza turns out delicious every time.