Preheat the oven to 400° F.
Grease a 1 ½-quart casserole.
Boil the celery in enough water to cover until tender;
drain.
Melt the butter over medium heat; stir in the flour and
slowly add the milk to make a cream sauce, stirring until
thick and smooth.
Add the salt and well-drained celery.
Spoon into the prepared casserole, top with pecans, and
cover with buttered bread crumbs.
Bake at 400° F. for 15 minutes.