Easy & Healthy Mahi Mahi with Blackened Seasoning


This easy & healthy Mahi Mahi with blackened seasoning is tender, flaky, and flavorful; everyone loves it!!!!

How to Make Blackened Mahi Mahi Filets that are Company Worthy


What is Mahi Mahi?

Mahi Mahi is a mild, flavorful fish with firm texture that typically comes in steaks or filets. It is low in calories, high in protein, and loaded with health benefits.

What is the best Mahi Mahi for blackening?

 For convenience,  I often use wild caught Kirkland frozen Mahi Mahi filets (from Costco).  Each filet is individually wrapped, so I can thaw and cook just what we need at the last minute. The cold water quick thaw (per instructions on package) makes it possible to make this dish start to finish in roughly half an hour. Fresh filets are also good but can only be stored in the fridge for a day or two.

What is the best blackened seasoning for Mahi Mahi?

My favorite blackened seasoning is an easy homemade recipe (below). It makes enough to store in a jar and use as needed for chicken or fish. If you prefer buying blackened seasoning rather than making it, there are several good options. William’s-Sonoma and The Fresh Market both have good ones. 


Blackened Seasoning

Prep Time: 5 minutes
Cook Time: 12 minutes
Additional Time: 3 minutes
Total Time: 45 minutes

Easy seasoning to make blackened fish or chicken.


  • 1 tablespoon paprika
  • 2 tablespoons smoked paprika
  • 1 teaspoon cayenne pepper
  • 2 teaspoons Italian seasoning
  • 1 teaspoon garlic powder
  • 1 tablespoon onion powder
  • 1 teaspoon salt
  • 1 teaspoon ground black pepper


Mix all spices together until blended.

Store in a jar or container to use as needed.

What is the best skillet to use for blackening chicken or fish?

You can use most any skillet to blacken fish, but my top choices are cast iron. Both of these materials do a wonderful job of creating a perfect blackened crust. I am partial to cast iron in most everything I cook. You can’t go wrong cooking anything in cast iron. My favorite cast iron is Lodge, and this 12″ inch is perfect for this and most recipes. I also love this pricier high-end Staub cast iron, but I am collecting it one piece at the time.




What sides go well with Mahi Mahi?

I almost always serve Maji Mahi filets over rice. I love wild rice and rice pilaf, and I make them with chicken broth for added flavor. In addition to the rice, I’ll add a green vegetable and/or salad. Broccoli and asparagus make excellent sides as well. 

Everyone who has tried this loves it, and it could not be easier to make. I highly recommend it as a healthy, delicious, and company-worthy meal. If you make it, please leave comments and let me know how it turns out. As always, thanks so much for stopping by. Be blessed, and stay savvy!!!

Blackened Mahi Mahi

Blackened Mahi Mahi

Yield: 4
Prep Time: 30 minutes
Cook Time: 20 minutes
Total Time: 50 minutes

Fish as lovely and delicious as you'd get in fine restaurant but easy to make in your own kitchen.


  • 4 Mahi Mahi filets (freshed or thawed from frozen)
  • 4 TB extra virgin olive oil
  • 4 TB blackened seasoning
  • juice from one fresh lemon


  1. Heat extra virgin olive oil (EVOO) in medium skillet on medium high.
  2. Brush Mahi Mahi filets with EVOO.
  3. Completely coat both sides with blackened seasoning.
  4. When a drop of water in skillet makes oil sizzle, the skillet is ready.
  5. Place filets in skillet, leaving space between filets for easy turning.
  6. Cook 4-5 minutes until browned, crisp coating forms on first side.
  7. Gently turn filets over; cooking until brown & crisp on other side (4-5 minutes).
  8. Once both sides are browned, turn filets as necessary to completely cook.
  9. If not serving immediately, turn heat off and cover skillet to keep filets warm.
  10. Sprinkle filets with fresh lemon juice just before removing from skillet.
  11. Serve with wild rice or roasted vegetables.
Nutrition Information
Yield 4
Amount Per Serving Calories 143Total Fat 14gProtein 5g

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  1. Hi! I made this a few times a couple years ago and we loved it! Problem..just bought another big bag of Mahi from Costco with this recipe in mind and am no longer seeing the instructions for the blackened seasoning?? I have scrolled through this page several times and can’t find it anymore? Help please?

  2. Hi Ray. Aren’t the filets just lovely? And I love having frozen on hand. I can never plan when I want to cook fish, and these cold thaw perfectly in less than an hour. Thanks for your comment and for reading the blog!!!

  3. 2nd time I used this recipe and I bought the MahiMahi at Costco as instructed. They are beautiful !

  4. Hi Robert! Thanks for letting me know you love the recipe! And Florida~yes~such FRESH and yummy seafood! And I had NO idea that Mahi was the same as dolphin. Thanks for letting us know!! Have a great one!!!

  5. It turned out great ! We had it with butternut and acorn squash and rice. Just one flip was enough to cook it just rite not dried out. Keep up the good work. I’m in Florida so got fresh Mahi or dolphin we call it here.

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