Set your oven to 425°F to get it ready.
In a 9x13 baking pan, combine the uncooked pasta with alfredo sauce, chicken broth, shredded chicken, and minced garlic; stir everything together well.
Cover the dish tightly with foil and bake for 30 minutes.
Carefully remove the foil and stir the pasta to check its firmness; if the pasta is still too firm, cover it again and bake until it reaches a tender but firm texture.
Once the pasta is just right, sprinkle the shredded mozzarella cheese evenly on top.
Return the baking dish to the oven uncovered and cook for an additional 8 to 10 minutes until the cheese has melted and the pasta is fully cooked.
For an extra touch, garnish with freshly grated Parmesan or chopped herbs if you like.