HEAT a large skillet over medium heat. Melt 2 tbsp of butter in the skillet, then place catfish fillets in the pan. Sprinkle 1 tsp Creole seasoning, salt and pepper onto fillets, covering evenly.
COOK each side for 5-8 minutes or until catfish is fully cooked through. Place on a dish to the side to cool, then flake fillets with two forks.
PREHEAT the oven to 400 degrees Fahrenheit. Melt the rest of the butter in a deep pan over medium heat, then add celery, green onions and bell peppers. Saute the vegetables, stirring occasionally, for 6-8 minutes or until peppers are tender.
STIR in flaked catfish, garlic and remaining Creole seasoning; combine, stirring occasionally, for 2 minutes.
REDUCE heat to low and add cream cheese, stirring until the cheese is melted.
REMOVE from heat and stir in the okra and 1/2 cup Parmesan cheese. Drain some of the liquids out and pour the mixture into an 8×5 baking dish. Cover with remaining Parmesan cheese.
BAKE for 25-30 minutes or until the top is golden and bubbly. Sprinkle with the fresh parsley and serve with bread, vegetables or your favorite dip accessories!