Season the crawfish tails with salt and pepper.
Heat butter in a pan over medium heat.
Add onion, bell pepper, and celery.
Cook until vegetables are translucent.
Add flour to the pan.
Stir continuously to create a roux.
This should take around 5 minutes until it turns light brown.
Gradually add water while stirring to avoid lumps.
Add Creole seasoning, thyme, oregano, bay leaf, and crawfish tails.
Combine well.
Simmer the mixture for about 15 minutes.
Stir occasionally.
Adjust salt and pepper as needed.
For the bisque, add fish stock, tomato paste, and cream in a separate pan.
Simmer for 20 minutes.
Add brandy and bring to a gentle boil.
To serve, arrange fried crawfish on a plate with rice.
Add a generous ladle of etouffee and a small bowl of bisque.
Garnish with green onions.