Bring a large pot of salted water to a boil. Cook the 9 lasagna noodles according to the package instructions until just al dente. Drain and lay them flat on a lightly oiled baking sheet or parchment paper to prevent sticking.
In a large mixing bowl, combine the shredded chicken, ricotta cheese, grated Parmesan, garlic powder, Italian seasoning, salt, and pepper. Mix well until all ingredients are evenly incorporated.
Take one noodle at a time and spread approximately ¼ cup of the filling mixture evenly over the entire surface. Carefully roll the noodle from one end to the other, creating a tight roll. Place each roll seam-side down in the prepared baking dish.
Pour the Alfredo sauce evenly over the lasagna rollups. Sprinkle the shredded mozzarella cheese on top, ensuring each roll is nicely covered to get that golden, bubbly crust.
Cover the dish loosely with aluminum foil and bake in a preheated oven at 375°F (190°C) for about 25 minutes. Then remove the foil and bake for an additional 10 minutes or until the cheese is melted and slightly golden.
Once out of the oven, let the dish rest for 5 minutes. Sprinkle freshly chopped parsley on top for a burst of color and fresh flavor. Serve warm and enjoy!