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Blackened Fish Tacos – Easy Weeknight Dinner

Mild-tasting mahi-mahi fillets coated in blackening spice are laid atop of a bed of creamy coleslaw, topped with a cool avocado sauce, then rolled in warm tortillas in this amazing Blackened Fish Tacos recipe.

Mild-tasting mahi-mahi fillets coated in Cajun spice are laid atop of a bed of creamy coleslaw, topped with a cool avocado sauce, then rolled in warm tortillas in this amazing Blackened Fish Tacos recipe.

Taco Tuesday is one of our favorite dinner traditions. But since eating the same old beef-filled tacos can get boring quickly, we mix things up by trying different types of tacos each week. Last week I made these Blackened Fish Tacos, and they were amazing!

These blackened fish tacos check all the Taco Tuesday right boxes; they're quick, they're easy, they have meat, vegetables, and sauce, and, they taste delicious!

blackened fish tacos

How to Make Blackened Fish Tacos

This easy Blackened Fish Taco recipe comes together in about 30 minutes. The fish is flavorful and spicy, but the heat is mellowed out by the creamy slaw and the cool and refreshing avocado dressing. Altogether they are an amazing blend of tastes and textures!

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Ingredients Needed for Blackened Fish Tacos

Blackened Fish Tacos call for several ingredients, but they are all easy-to-find. You will find the complete ingredient list and instructions in the printable recipe card at the end of this post.

Recipe Instructions

This Blackened Fish Taco recipe has 4 distinct parts:

  1. The fish – mix the blackening seasonings in a small bowl, rub it over the fish, slice the fish, then cook.
  2. The slaw – slice the veggies, make the slaw sauce, pour it over the vegetables, season and toss.
  3. The creamy Avacado sauce – place ingredients in a food processor and blend 'til smooth. Adjust seasonings to taste.
  4. Put it together – divide the creamy coleslaw and blackened fish between tortillas, top with sliced radishes and fresh cilantro, drizzle with Creamy Avocado Sauce, then roll 'em up.

If you're really short on time, you could always use a bag of store-bought slaw instead. This will cut almost 10 minutes off the prep time.

The creamy Avocado sauce is optional, but I highly recommend it.

easy blackened fish tacos

What Kind of Fish Can I Use in Fish Tacos

When a recipe calls for white fish it's generally talking about a mild-flavored, often slightly-sweet fish, which can be interchangeable in recipes. If you’d rather make these blackened fish tacos with something besides mahi-mahi, go for it! You could also use tilapia, snapper, cod, halibut, salmon, or any other firm white fish.

blackened fish tacos easy weeknight dinner

Printable Recipe

blackened fish tacos

Blackened Fish Tacos

Mild-tasting Mahi Mahi filets coated in blackening seasonings are laid atop a bed of creamy coleslaw, topped with a cool Avocado sauce, then rolled up in warm tortillas in this easy and delicious Blackened Fish Tacos recipe.
Print Pin
Course: Main Course
Cuisine: American
Keyword: fish, fish tacos, mahi mahi
Prep Time: 20 minutes
Cook Time: 8 minutes
Total Time: 28 minutes
Servings: 4 people
Author: Kelly
Cost: $25


Blackening Seasoning Ingredients

  • 1 tbsp onion powder
  • 1 tbsp garlic powder
  • tbsp smoked paprika
  • 1 tbsp dried thyme
  • 1 tbsp dried oregano
  • 2 tsp sea salt
  • 1 tsp black pepper
  • ½-1 tsp cayenne pepper more for spicier seasoning

Coleslaw Ingredients

  • 3 cups green cabbage thinly sliced
  • 1 cup red cabbage thinly sliced
  • 1 large carrot shredded
  • cup Greek yogurt
  • 1 tbsp apple cider vinegar
  • ¾ tsp cumin
  • ¾ tsp spicy Dijon mustard
  • 1 tbsp lime juice fresh
  • sea salt to taste
  • black pepper to taste

Creamy Avocado Sauce

  • 1 cup plain, whole milk Greek yogurt
  • 1 medium avocado peeled and chopped
  • 2 cloves garlic peeled, finely minced
  • 1 tsp ground cumin
  • ½ tsp smoked paprika
  • ½ tsp chili powder
  • 2 tbsp fresh cilantro finely chopped
  • 3 tbsp fresh lime juice
  • sea salt to taste
  • black pepper to taste

Remaining Ingredients

  • 8-20 oz Mahi Mahi
  • 2 tbsp olive oil extra virgin
  • 4-5 large radishes trimmed, thinly sliced
  • 3 tbsp fresh cilantro leaves chopped
  • 8 8-inch corn tortillas warmed


Blackening Instructions

  • Combine blackening ingredients in a small bowl, mix well. Set aside.

Coleslaw instructions

  • In a large bowl, combine the cabbages and chopped carrots. In a smaller bowl, whisk together the greek yogurt, apple cider vinegar, Dijon mustard, ground cumin, and lime juice. Pour this mixture over the vegetables. Season to taste with salt and pepper, then toss to combine. Set aside.

Creamy Avocado Sauce

  • Place all ingredients in a food processor. Blend until smooth and creamy. Add additional lime juice as needed to reach desired consistency. Taste, then adjust seasonings to taste. Serve immediately.

Fish instructions

  • Generously season both sides of the Mahi Mahi with the blackening seasoning, making sure to rub it in so it sticks. Carefully slice the fish into bite-sized pieces. Set aside.
  • Add olive oil to a large cast iron or other skillet over medium heat. Once heated, add the seasoned fish, cooking until fish is opaque and flaky (usually about 3-4 minutes per side). Remove from heat and set aside.

To Serve

  • Evenly divide the creamy coleslaw and blackened fish between the 8 (warmed) tortillas. Top with sliced radishes and fresh cilantro leaves. Top with creamy Avocado Sauce. Roll and enjoy!
Tried this recipe?Mention @sweetandsavorymorsels or tag #sweetandsavorymorsels!

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