**Preheat oven** to 375°F (190°C).
Cook pasta according to package directions, then drain and set aside.
In a large skillet, heat olive oil over medium heat. Add minced garlic and sauté for 1 minute, until fragrant.
Add heavy cream and milk to the skillet, whisking to combine. Bring to a simmer and cook for 3–4 minutes, allowing the sauce to thicken slightly.
Stir in Parmesan cheese, basil, oregano, salt, and pepper, cooking for an additional 2 minutes.
In a large bowl, combine cooked pasta, shredded chicken, and Alfredo sauce. Mix until everything is well coated.
Transfer the mixture to a greased 9x13-inch baking dish. Sprinkle shredded mozzarella on top, and if desired, add breadcrumbs for a crunchy topping.
Bake in the preheated oven for 25–30 minutes, or until the cheese is melted and bubbly.
Let cool for a few minutes before serving.