Melt margarine in saucepan over moderate heat and blend in flour. Slowly add milk and stir until slightly thickened. Remove from heat, combine noodles with sauce. Mix in tuna and remaining ingredients except topping. Spoon into 2 quart casserole dish which has been sprayed with a vegetable oil cooking spray.
Sprinkle bread crumbs over top.
Dot with margarine. Bake, covered for 20 to 25 minutes. The information contained in this website is not a substitute for medical advice or treatment, and Franklin Community Health Network recommends consultation with your doctor or health care professional.