In a saucepan melt the butter and blend in the flour, mustard powder and pepper. Stir until smooth. Slowly stir in the milk and beat out any lumps. Add the cheeses and stir constantly until the sauce is thick and smooth. Combine the sauce and the noodles in the prepared casserole dish.
Sprinkle bread crumbs over top.
Kitchenware Specialty Foods Chef's European Cutting Board Vermicelli 16 oz. Please review our Legal Notice and Privacy Policy .