Smoked Salmon without stalks peas

1 (16 ounce) smoked salmon fillets 4 tablespoons butter 1 cup coarsely chopped onion 1/2 cup coarsely chopped celery 1 cup coarsely chopped green pepper 4[...]

2 tablespoons butter 1 small onion , coarsely chopped 1 celery , coarsely chopped 2 1/2 tablespoons flour one 14 . 5-ounce can chicken broth 3 cups whole milk[...]