Roux and okra thickened gumbo with lots of meat and vegetables
Melt the butter in a large (8 quart) Dutch oven or soup pot.
Gradually stir in the flour.
Cook over medium low heat until it is about the color of peanut butter. This usually takes about 18 minutes so make sure to stir it frequently enough that it doesn’t scorch. (You can shortcut the cooking of the flour and butter to a couple minutes, the downside being the roux won’t develop as much depth of flavor.)
Add the onions, celery, peppers, garlic and spices and stir well.
Add the rest of the ingredients and bring to a simmer.
Simmer covered over low heat for about 1 ½ hours, stirring occasionally.
Salt to taste.
Serve over rice and add hot sauce to taste.