Blackened Fish Tacos - a handful of pantry spices makes a rub packed full of flavour for these fish tacos!
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4.91 from 10 votes

Blackened Fish Tacos

Fish cooked with a punchy spice rub of Cajun Flavours! Perfectly paired with a Avocado-Lime Slaw to make these irresistible tacos.
Prep Time20 mins
Cook Time6 mins
Total Time26 mins
Course: Dinner
Cuisine: Fusion
Servings: 8
Calories: 243kcal
Author: Guest Post by Kathleen from Hapa Nom Nom


Avocado-Lime Slaw

  • ½ cup greek yogurt
  • 1 avocado
  • 1 cup cilantro/coriander leaves
  • 2 garlic cloves
  • 2 limes zested and juiced
  • 2 jalapeños
  • 2 tbsp mint , roughly chopped
  • ½ tsp Kosher salt
  • Freshly ground black pepper , to taste
  • 1 cup red cabbage , finely shredded*
  • 1 cup green cabbage , finely shredded*
  • 2 carrots , grated*

Quick Sriracha Aioli

  • 1/4 cup mayonnaise
  • 1 tsp Sriracha
  • 1 tbsp fresh lime juice

Blackened Fish

  • 2 tbsp paprika
  • 2 tsp ground cumin
  • 2 tsp onion powder
  • 2 tsp garlic powder
  • 2 tsp dried thyme
  • 2 tsp dry mustard
  • 1 1/4 tsp Kosher salt
  • 1/4 tsp cayenne pepper
  • 2 tbsp extra virgin olive oil
  • 4 tilapia fillets

To Serve

  • 8 (6 inch) tortillas
  • 2 jalapeños , sliced
  • 1 small bunch cilantro


  • In the bowl of a food processor, add the yogurt, avocado, cilantro, garlic, lime zest, lime juice, jalapeños, mint, salt, and pepper. Puree until smooth and creamy. Taste and add more salt and pepper, if needed. Place the shredded cabbage and carrots in a large bowl. Add 1/2 a cup of the avocado-lime dressing from the food processor and stir to combine. Add more dressing if you would like a creamier slaw. If not, you can use the extra dressing to top the tacos later. Refrigerate until ready to use.
  • In a small bowl, combine the ingredients for the Sriracha Aioli. Refrigerate until ready to use.
  • If you would like to toast the tortillas (highly recommended if you are using corn tortillas)* heat a pan over medium-high heat. Once hot, warm each tortilla 1 to 2 minutes per side – you want to heat the tortillas just enough to slightly char and add a bit of crispness, but not so much that when you fold it, it cracks. Wrap the tortillas in a clean tea towel to keep warm and set aside.
  • On a large plate, combine all of the spices to make the blackened seasoning. Dredge both sides of each fish fillet in the spice mixture. In a large saute pan, heat the olive oil over medium-high heat. At the first wisp of smoke from the pan, add the fillets, working in batches if needed. Cook for 2 -3 minutes on each side. (Do not move the fish fillets around while they're cooking. Leave them be until they're ready to flip). Transfer the cooked fillets to a cutting board and slice each fillet in-half, vertically - making 8 pieces.
  • To serve, top each tortilla with the fish, avocado-lime slaw, jalapeños, cilantro, and drizzle with the Sriracha aioli. Serve with extra wedges of lime and enjoy!


1. If you want to keep things super quick and easy, you can buy a bag of shredded cabbage and carrots at most grocery stores. The slaw can also be assembled the day before.
2. Heating tortillas on a skillet certainly adds a nice texture to your tacos. However, it serves a dual purpose with corn tortillas (not so much with flour tortillas). Corn tortillas easily fall apart - which is why if you don't heat them, they are generally served with two tortillas per taco. By very slightly charing the corn tortillas, you are making them stronger and more pliable. Careful - you don't want heat them so much so that they become crispy and break when you fold them.
3. Nutrition per taco.
Blackened Fish Tacos Nutrition


Serving: 165g | Calories: 243kcal | Carbohydrates: 20.6g | Protein: 14.3g | Fat: 12.8g | Saturated Fat: 2.4g | Cholesterol: 30mg | Sodium: 619mg | Potassium: 337mg | Fiber: 5.2g | Sugar: 3g | Vitamin A: 3650IU | Vitamin C: 16.5mg | Calcium: 80mg | Iron: 2.5mg