Preheat your oven to 475°F (245°C). If using a pizza stone, place it in the oven while it preheats.
Roll out the pizza dough on a floured surface to your desired thickness (about 12 inches in diameter). Transfer it to a baking sheet or pizza peel dusted with flour or cornmeal for easy movement.
Brush the rolled-out dough lightly with olive oil to prevent it from getting soggy.
Spread the alfredo sauce evenly over the pizza dough, leaving a small border around the edges.
Sprinkle the shredded mozzarella cheese over the sauce, ensuring an even layer.
Scatter the shredded chicken evenly on top of the mozzarella. Season with garlic powder, Italian seasoning, salt, and pepper.
Add fresh spinach leaves on top of the chicken, followed by a sprinkle of grated Parmesan cheese.
Carefully transfer the pizza to the preheated oven (or onto the pizza stone), and bake for 12-15 minutes, or until the crust is golden brown and the cheese is bubbly.
Once baked, remove the pizza from the oven and allow it to cool for a minute before slicing.
Garnish with freshly chopped parsley for an added pop of color and freshness.