Preheat the oven to 375 degrees F and spray a 9x13-inch baking dish with cooking spray.
Add 1 cup of the alfredo sauce to the bottom of the pan and spread evenly.
In a large mixing bowl, mix 1 cup of the alfredo sauce, ricotta, egg, salt, pepper, nutmeg, parsley, 1 cup of the mozzarella cheese, parmesan cheese, and chicken until combined.
Lay the lasagna noodles on a flat surface, not overlapping.
Spoon the mixture on top of the noodles evenly and roll up.
Place in the baking dish, seam side down until all rolls are filled and placed in the pan.
Spoon the remaining sauce over the top of the rolls followed by the remaining 1 ½ cups mozzarella cheese.
Bake, uncovered for about 18-22 minutes until bubbly.
Sprinkle with more parsley, if desired and serve warm.