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.