Cook brown rice according to package directions. Brown rice takes about 40 minutes, so start this first.
Melt butter in a large Dutch oven over medium heat. Add onion, bell peppers, and celery. Sprinkle in Creole seasoning. Sauté for about 5 minutes until vegetables soften and spices become fragrant.
Add black beans, garlic, turkey sausage, chicken broth, and water. Stir well to combine.
Bring mixture to a boil, then reduce heat and let it simmer for at least 30 minutes. The longer it simmers, the more the flavors come together.
Serve the black bean and sausage mixture over cooked brown rice and enjoy.
Mix all ingredients together thoroughly and store in a resealable container. Shake or stir before each use.