Amish Chicken Casserole

8 oz. noodles, cooked
2 c. cooked chicken, cubed
2 c. chicken broth (can use canned)
1 c. milk
1 can mushrooms
2 tsp. salt
1/2 tsp. pepper
1/2 c. margarine
1/3 c. flour
1/3 c. grated Parmesan cheese

Melt margarine, then add flour and stir until smooth. Gradually add
milk and broth, then seasonings and mushrooms. Combine chicken,
cooked noodles, and prepared sauce. Put in ungreased 9 inch x 13 inch
x 2 inch baking pan and top with Parmesan cheese. Bake in a 350
degree F. Oven for about 45 minutes.