In a large stock pot, fry the bacon until crisp. Remove to paper towels for later use.
Add the celery, carrots, onion and garlic to the bacon grease. Saute until the vegetables have softened, about 10 minutes.
Stir the flour into the veggies. Gradually add the broth to the pan, stirring constantly and making sure to scrape the bottom of the pan. Add the water, diced tomatoes and cajun seasoning. Simmer 10 minutes.
Add the bacon and drained butter beans to the soup. Heat through. Season to taste with hot sauce and serve.
Notes
For this recipe I recommend Slap Your Mama Cajun seasoning.