Preheat the oven to 375°F (190°C).
Cook pasta according to package instructions and drain well.
Heat olive oil in a skillet over medium heat.
Add minced garlic and sauté until fragrant.
Add cooked chicken and season with salt and black pepper.
Stir in Alfredo sauce and cook for 2 minutes.
Combine pasta with chicken Alfredo mixture.
Transfer mixture to a greased baking dish.
Sprinkle mozzarella and Parmesan cheese evenly on top.
Bake uncovered for 25 minutes until bubbly and golden.
Garnish with fresh parsley before serving.