Preheat oven to 375°. Line a rimmed baking sheet with foil; lightly spray with cooking spray.
Sprinkle fish with ½ teaspoon salt and ¼ teaspoon black pepper. Place on prepared pan.
Bake until fish flakes easily with a fork, 20 to 25 minutes. Let cool completely.
Flake fish into a large bowl; add crackers, bell pepper, egg, celery, green onion, mayonnaise, lemon zest, Creole seasoning, remaining ½ teaspoon salt, and remaining ¼ teaspoon black pepper; stir until well combined. Shape mixture into 8 patties, and refrigerate for at least 2 hours or up to overnight.
In a large skillet, heat oil over medium heat. Gently place patties in skillet. Cook until golden and heated through, 3 to 4 minutes per side. Serve with Celery Slaw and lemon wedges.
Celery Slaw
In a large bowl, stir together all ingredients until combined. Cover and refrigerate until ready to serve.
Notes
*We used Tony Chachere’s Original Creole Seasoning.
*We used Blue Plate Mayonnaise.
Recipe by Louisiana Cookin' at https://louisianacookin.com/grouper-cakes-celery-slaw/