Preheat oven to 350~F. degrees. Melt butter in large saucepan over

medium low heat. Whisk in flour and stir 3 minutes. Gradually whisk

in broth and milk. Reduce heat, simmering until thick, about 10

minutes. Blend in lemon juice and seasonings. Combine cooked noodles

and half the sauce, tossing gently to blend. Place in the bottom of a

buttered 2-quart casserole. Top with chicken and remaining sauce.

Combine Parmesan cheese and paprika, sprinkle over casserole. Bake

until bubbling and golden brown, about 30 minutes. Serve hot.