Chicken Cordon Bleu Casserole

Preheat oven to 375.

Spray 9 x 13 pan with non-stick cooking spray.

Combine cooked chicken, cooked ham and mozerella cheese in a large bowl. Set aside.

In a large sauce pan, melt butter. Add flour to make paste and cook for 2 minutes.

Add 2 cups milk, heat to a boil, stirring constantly.

Remove from heat and add ground mustard and nutmeg.

Pour sauce over chicken mixture, coat well.

Transfer into prepared pan.

Bake uncovered for 45 minutes or until top is bubbly and brown.