Saute the onion and celery in the butter until translucent. Add the sausage and continue cooking
until the sausage has released some of its fat. Stir in the flour to form a roux.
Add in the broth, herbs, okra, Worcestershire, and file powder. Bring to a boil and simmer until the
okra is cooked, then season to taste.
Plate over rice and serve hot.
Adapted from Bon Appetit Essential Soups, Stews, & Chilis