Cook and cube chicken; set aside. Cook noodles as directed on package and set aside. Fry green pepper and onion until soft. Melt butter in a sauce pan; add flour and stir to make a roux. Pour in cream and chicken broth. Pour over mixture of chicken, noodles, vegetables and cream of mushroom soup. Place in greased baking dish. Top with bread crumbs. Bake at 350 degrees F. for approximately 30 minutes.