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Home / Recipes / Meat & Seafood Recipes

Blackened Mahi Mahi Tacos

Published: Dec 3, 2023 · Modified: Jun 5, 2025 by Sujatha Muralidhar · This post may contain affiliate links · Leave a Comment

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blackened mahi mahi tacos with sour cream topping in a plate

Looking for something delicious and easy? Try these Blackened Mahi Mahi Tacos! They have a great smoky taste and a smooth, creamy taco sauce. They're perfect for a quick dinner or making your taco night with friends extra special.

blackened mahi mahi tacos arranged for serving

Why You'll Love This Recipe?

  • Flavorful Blackened Seasoning: Our unique homemade blackening seasoning blend adds a bold and zesty touch to the mahi mahi fillets, making them tasty.
  • Supremely satisfying: The mahi mahi, rich in protein and veggie toppings, makes for a hearty, tasty, and satisfying meal (like these Cajun shrimp tacos).
  • Homemade topping Options: Try these tacos with black beans, your favorite salsa(mango salsa or pico de Gallo), or sauce for a fresh and tangy kick to each bite.
  • A Fusion Recipe: This dish is a beautiful mix of spicy Cajun flavors and classic Mexican seafood tacos, creating a deliciously unique meal.

The Ingredients

the ingredients for making blackened mahi mahi arranged in the counter top
  • Mahi Mahi fillets: This firm and white fish tastes mildly, perfect for blackened seasoning. If mahi mahi isn't available, try firm fish varieties like grouper or snapper fillets.
  • Blackening seasoning: This adds a smoky and delicious flavor to the fish. Don't have it? Make your spice blend by mixing garlic powder, onion powder, paprika, black pepper, cayenne pepper, and a little salt to make your own.
  • Olive oil: If you'd like something different, avocado oil is a good choice.
  • Tortillas: I use store-bought flour tortillas and char them a bit over the stovetop. But corn tortillas are great for a classic taco.
  • Lettuce: Shredded lettuce adds a fresh crunch. For more crunch, try purple cabbage. You can also pick any crunchy greens or spinach.
  • Tomatoes: These add a fresh burst to the tacos. You may leave them out or swap in diced red bell peppers.
  • Red onion: I've used red onions here, but white or yellow onions are fine too.
  • Cilantro leaves: This gives a refreshing flavor. Not a fan? Use parsley instead.
  • Sour cream: For a lighter option, try Greek yogurt.
  • Lime: Lime or lemon both add a nice touch to the tacos.

How To Make Blackened Mahi Mahi Tacos?

step 1 making the soft tortilla
  1. Season the mahi mahi fillets with blackening seasoning on both sides.
seasoned mahi mahi roasting in the skillet
  1. Heat olive oil in a skillet and cook the mahi mahi for 3-4 minutes on each side until blackened.
the mahi mahi ingredients arranged in the taco
  1. Warm the flour tortillas in a separate skillet or microwave.
blackened mahi mahi taco is ready for serving over plate
  1. Assemble the tacos with blackened mahi mahi, lettuce, tomatoes, red onion, cilantro, sour cream, and lime juice, then serve immediately.

What To Serve With?

  • Tex-Mex Accompaniments: A flavorful rice dish and refried beans complement the tacos with aromatic spices. 
  • Salad Options: Salads add a refreshing contrast to the rich flavors of the tacos.
  • Salsa Varieties: Sweet, tangy, and slightly spicy salas enhance the flavor of the blackened mahi mahi taco.
  • Drinks: Lemonade, Mojito, or Agua Fresca are popular drinks that balance sweet and sour.
  • Dessert: Churros are the best with Chocolate Dipping Sauce or key lime pie.
blackened mahi mahi tacos lifted for eating

Recipe Tips And Tricks

  • For perfectly seasoned Mahi Mahi: Pat dry the fillets with paper towels before seasoning. 
  • Bite-sized: You may cut the Mahi Mahi fillet into cubes. This is convenient for handling.
  • Customizable Toppings: Toss your favorite taco toppings, such as avocado slices, hot sauce, chipotle aioli, or a creamy cilantro lime sauce. 
  • Spice It Up: Increase the cayenne pepper or chili powder to the blackening seasoning for an extra zing.
  • Adding Crunch and Color: Top your tacos with thinly sliced purple cabbage. The vibrant color and crisp texture create a stunning visual contrast and add freshness and crunch to complement the blackened Mahi Mahi.
tray fill with 7 blackened mahi mahi tacos side by side

📖 Recipe

blackened mahi mahi tacos served over a plate

Blackened Mahi Mahi Tacos

Try these Blackened Mahi Mahi Tacos if you are looking for something quick and delicious, with smoky flavor topped with creamy taco sauce.
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Prep Time: 15 minutes minutes
Cook Time: 10 minutes minutes
Servings: 4 Servings
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Ingredients

  • 4 mahi mahi fillets
  • 2 tablespoon blackening seasoning
  • 2 tablespoon olive oil
  • 8 tortillas
  • 1 cup lettuce shredded
  • 1 cup tomatoes diced
  • ½ cup red onion diced
  • ¼ cup cilantro fresh/chopped
  • ¼ cup sour cream
  • 1 lime cut into wedges

Instructions

  1. Season the mahi mahi fillets with blackening seasoning on both sides.
  2. Heat the olive oil in a skillet over medium-high heat.
  3. Cook the mahi mahi fillets on each side for 3-4 minutes until blackened and cooked.
  4. Warm the flour tortillas in a separate skillet or microwave.
  5. Assemble the tacos by placing a blackened mahi mahi fillet on each tortilla.
  6. Top with shredded lettuce, tomatoes, red onion, and chopped cilantro.
  7. Toss a dollop of sour cream on top.
  8. Squeeze fresh lime juice over the tacos.
  9. Serve immediately.

Notes

  • Blackened mahi mahi tacos have varied textured ingredients. Hence, Rather than storing them as assembled tacos, storing the ingredients in individual containers is great for maintaining their freshness and flavor. 
  • Mahi Mahi fillets: Save these cooked mahi-mahi fish fillets in an airtight container and store them in the refrigerator for up to 4 days and in the freezer for up to 2 months. 
  • Tortillas: Wrap them in aluminum foil or a zip-top bag. You can store the tortillas at room temperature if you eat them within a day or two or in the refrigerator for a longer shelf life.
  • Toppings: Fresh toppings like lettuce, cabbage, or other greens should be stored in separate air-tight containers or plastic bags in the crisper drawer of your fridge. If you have sauces or salsas, store them in different refrigerators.
  • Reassembling and Reheating: When you're ready to enjoy your tacos again, reheat the Mahi Mahi gently in a pan or the microwave. Gently reheat the tortillas on a skillet or in the microwave, and then assemble your tacos with the fresh toppings and enjoy!

Nutrition

Calories: 1737kcal | Carbohydrates: 138g | Protein: 149g | Fat: 63g | Saturated Fat: 18g | Polyunsaturated Fat: 10g | Monounsaturated Fat: 28g | Cholesterol: 530mg | Sodium: 4528mg | Potassium: 3508mg | Fiber: 13g | Sugar: 17g | Vitamin A: 2249IU | Vitamin C: 29mg | Calcium: 567mg | Iron: 18mg

Additional Info

Course Appetizer, Dinner
Cuisine American, Mexican
Author Sujatha Muralidhar
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The author image of the food blog pepperbowl.com

Hi, I'm Suja! I'm the person behind PEPPER BOWL, based in Pennsylvania. I focus on easy, simple-to-make recipes inspired by rich flavors with a hint of heat. I enjoy simplifying recipes with minimal ingredients to suit today's busy lifestyle.

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