Simmer about 20 minutes, then taste and adjust the seasonings. Add more spice if you want it, and brighten/balance the flavors with some sugar (I used coconut sugar) and some vinegar.
Tip: to get beautiful cream swirls in your soup, whisk some heavy cream with a pinch of Cajun seasoning until barely thickened. Then, it will float on top when you drizzle it on top of your soup!
Other garnish ideas include crisp bacon, tiny squares of grilled cheese sandwich, croutons, crackers, or even more sauteed trinity. Serving over rice is also a tasty option.