Recipe from: AllRecipes.com
1 (16 ounce) package lasagna noodles
1 (10 ounce) package frozen chopped spinach
3 cooked, boneless chicken breast halves, diced
2 (16 ounce) jars Alfredo-style pasta sauce
4 cups shredded mozzarella cheese
2 pints ricotta cheese
salt and pepper to taste
Preheat oven to 350 degrees. F (175 degrees C). Bring a large pot of lightly salted water to a boil. Add pasta and cook for 8 to 10 minutes or until al dente; drain. Cook spinach according to package directions; drain.
In a medium bowl, combine chicken and one jar of alfredo sauce, stir together. In a separate bowl, combine ricotta and drained, cooked spinach, and stir.
In a 9 x 13 baking dish, place one layer of lasagna noodles, edges overlapping. Pour chicken and alfredo sauce mixture over noodle layer and spread evenly. Sprinkle 1 cup of shredded mozzarella over chicken mixture. Top with another layer of noodles. Spread spinach mixture evenly over noodles. Pour 1/2 of remaining jar of alfredo sauce over spinach mixture, spread evenly. Sprinkle another cup of mozzarella over sauce, lay on the final noodle layer and top with remaining 2 cups of mozzarella and salt and pepper to taste. Bake 50 to 60 minutes, until top is brown and bubbly.