Step 1: Cook lasagna noodles according to package directions until al dente, then drain and lay flat on a clean surface.
Step 2: In a large bowl, combine shredded chicken, Alfredo sauce, ricotta cheese, Parmesan cheese, egg, garlic powder, and Italian seasoning.
Step 3: Spread about 1/3 cup of the chicken Alfredo mixture evenly over each lasagna noodle.
Step 4: Carefully roll up each noodle from one end to the other, creating tight rolls.
Step 5: Spread 1 cup of marinara sauce in the bottom of a 9×13 inch baking dish.
Step 6: Place the lasagna rolls seam-side down in the baking dish, arranging them in a single layer.
Step 7: Pour the remaining 1 cup of marinara sauce over the rolls.
Step 8: Sprinkle shredded mozzarella cheese evenly over the top.
Step 9: Cover with foil and bake at 375°F for 25 minutes.
Step 10: Remove foil and bake for an additional 10 minutes or until cheese is bubbly and golden.
Step 11: Let cool for 5 minutes before serving, garnished with fresh parsley if desired.