Cook lasagna noodles according to package directions. Drain and lay out flat on parchment paper so they don't stick together.
While noodles cook, combine chicken, ricotta cheese, 1/4 cup shredded Parmesan, green onions, Italian seasoning, salt, crushed red pepper flakes, pepper, and 1/4 cup of alfredo sauce in a medium bowl. Stir in 1 cup of shredded mozzarella cheese.
Pour 1/4 cup of alfredo sauce in the bottom of a greased 9x13-inch baking dish.Preheat oven to 350 degrees.
Spread chicken mixture out on top of lasagna noodles, dividing it evenly between the noodles.Roll each noodle up and place in prepared baking dish.
Pour remaining alfredo sauce over lasagna rolls.
Sprinkle remaining Parmesan cheese and mozzarella cheese on top.
Cover with aluminum foil. Note: Spray underside of foil with cooking spray so it doesn't stick to the cheese.Bake for 20 minutes. Uncover and bake another 10 minutes.If you want the top to get golden, you can turn the broiler on for a few minutes.