AMISH CHICKEN CASSEROLE

8 oz. broad egg noodles 1/2 cup butter 8 oz. fresh mushrooms, slice 1/3 cup flour 2 cups chicken broth 1 cup milk salt and pepper, to taste 1/3 cup freshly grated Parmesan cheese 2 cups cooked chicken, cut in cubes generous pinch of rubbed sage Cook noodles as directed on package. Melt butter and cook mushrooms in a large skillet until lightly browned. Stir in flour and blend in with a fork or slotted spoon. Stir in milk and broth and seasonings; whisk sauce constantly until thickened.Combine sauce, noodles and chicken. Adjust seasonings to taste. Place in a 2 quart casserole dish. Sprinkle top with Parmesan cheese and bake at 350°F for 30 minutes.