Creating the Creamy Chicken Alfredo Pasta Bake is a simple task that anyone can master. Follow these steps to achieve perfection:

1. Preheat your oven to 350°F (175°C).
2. Cook the rotini pasta according to package instructions until al dente. Drain and set aside.
3. In a large skillet, heat the olive oil over medium heat.
4. Add the cubed chicken to the skillet and season with garlic powder, Italian seasoning, salt, and pepper.
5. Cook the chicken until browned and cooked through, about 5-7 minutes. Remove from heat.
6. In a large mixing bowl, combine the cooked pasta, chicken, Alfredo sauce, mozzarella cheese, Parmesan cheese, and frozen peas (if using). Mix well until everything is coated.
7. Transfer the mixture into a greased 9×13-inch baking dish, spreading it evenly.
8. Sprinkle a little extra mozzarella cheese on top for a nice, cheesy crust.
9. Bake in the preheated oven for 30-35 minutes, or until the top is bubbly and golden.
10. Allow to cool for a few minutes before serving.

These straightforward steps will lead you to an incredible Creamy Chicken Alfredo Pasta Bake that’s sure to impress!