Blackened Fish Tacos Recipe

Time-Saving Tip: Use one 12-oz. bag of shredded coleslaw mix instead of the sliced vegetables to reduce prep time.

Blackened Fish Tacos Recipe

Prep Time 20 minutes
Cook Time 8 minutes
Total Time 28 minutes
Course Main Course
Servings 4


Blackened Seasoning Ingredients:

  • 1 tbsp Onion powder
  • 1 tbsp Garlic powder
  • 1 1/2 tbsp Smoked paprika
  • 1 tbsp Dried thyme
  • 1 tbsp Dried oregano
  • 2 tsp Sea salt
  • 1 tsp Black pepper
  • 1/2 - 1 tsp Cayenne pepper (Adjust amount of cayenne to reach desired level of heat)

Coleslaw Ingredients:

  • 3 cup Green cabbage, thinly sliced
  • 1 cup Red cabbage, thinly sliced
  • 1/2 cup Kale leaves, finely chopped (Optional)
  • 1 Large carrot, shredded
  • 1/3 cup Greek yogurt
  • 1 tbsp Apple cider vinegar
  • 3/4 tsp Ground cumin
  • 3/4 tsp Spicy Dijon mustard
  • 1 tbsp Fresh lime juice
  • Sea salt and black pepper, to taste

Remaining Ingredients:

  • 2 tbsp Extra virgin olive oil
  • 18-20 oz Mahi-mahi or other firm white fish
  • 4-5 Large radishes, trimmed and thinly sliced
  • 3 tbsp Fresh cilantro leaves, chopped
  • 8 8-inch corn or gluten-free tortillas


  • Combine the ingredients for the Blackened seasoning in a small bowl and stir to combine. Set aside.
  • To prepare the coleslaw, add the sliced cabbage, kale leaves (if using), and shredded carrot to a large, non-reactive bowl. Whisk the Greek yogurt, apple cider vinegar, ground cumin, Dijon mustard, and lime juice together in a smaller bowl and pour over top of the other vegetables. Season with salt and black pepper, to taste, and toss to combine. Set aside.
  • Generously season both sides of the mahi-mahi with the blackened seasoning and rub to cover the entire fish and to make sure it adheres well. Carefully slice the fish into bite-sized pieces and set aside.
    Note: You can slice the fish before seasoning, but it takes longer to coat each piece individually and the blackened flavor will be much stronger if all sides are coated.
  • Add the olive oil to a large cast-iron or other skillets over medium heat. Once heated, add the seasoned fish and cook until opaque and flakey, approximately 3-4 minutes per side. Remove from heat and set aside.
  • To serve, evenly divide the creamy coleslaw and blackened fish between the 8 tortillas. Top with the sliced radishes and fresh cilantro leaves. Enjoy!
Keyword Blackened Fish Tacos

Blackened Fish Tacos

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