Preheat your oven to 375°F (190°C).
Cook the pasta according to the package instructions until al dente. Drain and set aside.
In a large mixing bowl, combine the shredded chicken, alfredo sauce, garlic powder, dried oregano, black pepper, and salt. Mix well.
Add the cooked pasta to the chicken and sauce mixture and mix until everything is well coated.
Transfer the mixture to a greased baking dish and spread it evenly.
Sprinkle the shredded mozzarella cheese and grated Parmesan cheese over the top.
Bake for 20-25 minutes, or until the cheese is melted and golden brown.
Garnish with fresh parsley before serving.
Enjoy your creamy and delicious chicken alfredo bake!