1Preheat oven 425
Cook spaghetti in boiling water according to directions.
Saute the chopped onion, celery & g.pepper in the butter.
Mix together the sauteed vegetables, chicken, chicken soup, pimentos, salt & pepper, chicken broth and cooked spaghetti.
2Place all of this in a lightly greased 2 qt.baking dish.
Stir cheese & panko crumbs together and spread on top.
Dot with butter.
Bake 15 - 20 minutes or until golden brown.