Follow these steps to make your Ultimate Chicken Pizza:

1. Preheat Oven: Preheat your oven to 475°F (245°C) for optimal cooking conditions.
2. Cook Chicken: In a skillet, heat the olive oil over medium heat. Add the diced chicken, garlic powder, onion powder, smoked paprika, salt, and pepper. Cook until the chicken is fully cooked and lightly browned, about 5-7 minutes. Remove from heat.
3. Prepare Dough: On a floured surface, roll out the pizza dough to your desired thickness, typically about ¼ inch thick.
4. Transfer to Baking Sheet: Place the rolled dough onto a baking sheet or pizza stone lined with parchment paper.
5. Add Sauce: Spread the marinara sauce evenly over the pizza dough, leaving a small border for the crust.
6. Top with Cheese: Sprinkle half of the mozzarella cheese over the sauce.
7. Add Chicken: Distribute the cooked chicken evenly over the cheese layer.
8. Add Vegetables: Scatter the sliced red and green bell peppers and red onion on top of the chicken.
9. Finish with Cheese: Top with the remaining mozzarella cheese, ensuring an even layer over the toppings.
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 done, remove from the oven and let it cool slightly. Garnish with fresh basil leaves before slicing.

These steps will guide you in creating the flavorful Ultimate Chicken Pizza effortlessly, and your kitchen will be filled with mouthwatering aromas as it bakes!