Heat olive oil in a large skillet over medium heat. Add the minced garlic and sauté for 1-2 minutes until fragrant but not browned.
Pour in chicken broth, heavy cream, garlic powder, and onion powder. Stir to combine and simmer gently for 3-4 minutes to thicken slightly.
Gradually whisk in grated Parmesan cheese until the sauce is smooth and creamy. Season with salt and pepper to taste. Keep the sauce warm on low heat.
In a large mixing bowl, toss cooked pasta and shredded chicken together. Pour the warm Alfredo sauce over and stir until evenly coated.
Transfer the pasta mixture into a greased baking dish. Sprinkle shredded mozzarella cheese evenly on top.
Preheat oven to 350°F (175°C). Bake uncovered for 20-25 minutes until cheese is melted, bubbly, and slightly golden.
Remove from oven and let cool for a few minutes. Garnish with fresh chopped parsley. Serve warm and enjoy!