Chicken and Spinach Lasanga

This was from a women I used to work with, Jean. Very good...but also pretty time consuming and mine was soupy! Mark just requested this again so it must have tasted really good!!

1 white onion, chopped
1 clove garlic, minced
1/2 cup butter
1/2 cup all-purpose flour
1 tsp. salt
2 cups chicken broth
3-4 cups cooked, cubed chicken
16 oz mushrooms, cut up
1 1/2 cup milk
1 1/2 cup grated parmesan cheese
4 cups mozzarella cheese, shredded
1 tsp dried basil
1/2 tsp ground black pepper
1 pkg lasagna noodles
2 cups ricotta cheese
2 eggs
2 - 10 oz pkg of frozen spinach, thawed and drained
1 tsp chopped fresh parsley

1. Make ricotta cheese mixture; combine ricotta cheese, 1/2 c parmesan, 2 eggs, and a little salt and pepper. Set aside.

2. Make the sauce; Melt butter in a large saucepan. Saute the onion, garlic and mushrooms. Stir in flour and salt, whisk until smooth. Gradually add the broth and milk, stirring with whisk until smooth. Over medium heat bring to a boil, stirring frequently. Boil for 1 minute. Stir in 2 cups of mozzarella cheese and 1/2 cup of parmesan, add basil and pepper. Set aside.

3. Cook noodles

4. Preheat oven to 350 degrees. Spray 9X13 pan with cooking spray.

5. Layers;
A. 1/3 sauce, noodles, 1/2 ricotta cheese mixture, all the chicken
B. 1/3 sauce, noodles, 1/2 ricotta cheese mixture, all the spinach
C. 2 cups mozzarella, 1/3 sauce. 1/2 cup parmesan, parsley

6. Cover and bake 35-40 minutes. Uncover and bake an additional 10 minutes.