Bring a pot of water to a boil and add the pasta with a pinch of salt.

Cook the pasta on medium heat for 10 minutes, or until al dente. Drain the water.

In a jar, combine milk, flour, salt, and pepper. Shake well to avoid lumps.

In the same cooking pan, add the milk mixture, cooked pasta, and leftover chicken.

Cook over medium heat, stirring occasionally, until the sauce thickens and coats the pasta and chicken.

Continue to cook until most of the milk is absorbed.