Heat avocado oil in a large pot over medium heat.
Whisk in almond flour to create a roux, stirring constantly until golden brown.
Add onion, bell pepper, and celery, cooking until softened.
Slowly pour in the seafood stock while stirring.
Add okra, Cajun seasoning, salt, and pepper, simmering for 15 minutes.
Stir in shrimp and crabmeat, cooking for another 10 minutes until shrimp are pink and cooked through.