Ham and Swiss Lasagna

Name: Ham and Swiss Lasagna
Ingredients: 4 TBL butter; 4 TBL flour; 2 cups milk; 2 cups chicken stock; 3 TBL dijon mustard; salt and pepper; 1 box no-boil lasagna noodles; 2 10 oz boxes chopped broccoli; 3-5 cups leftover ham ; chopped; 2 cups shredded swiss cheese; parsley ; for garnish