Baked Mahi Mahi with Cashew Crust

Baked Mahi Mahi is a quick and easy 5-ingredient seafood entrée that’s rich and flavorful, topped with a crunchy cashew crust.

Baked Mahi Mahi

When my kids were young and I lived the corporate life, this easy Mahi Mahi, (adapted from Adelphia Seafood) was a favorite weeknight dinner.  With just 5 ingredients and a short baking time, preparation was quick enough to squeeze between swim club pickup and dance class drop off.  Even when I arrived home exhausted.

Even better, the great flavor pleased kids and adults alike! 

Recently, craving a unique seafood recipe, I decided it’s time for a revival!  ‘Cause everyone needs a delicious break once in a while.  

Baked Mahi Mahi

What is Mahi Mahi?   

Per Wikipedia The mahi-mahi  or common dolphinfish is a surface-dwelling ray-finned fish found in off-shore temperate, tropical, and subtropical waters worldwide… The name mahi-mahi comes from the Hawaiian language and means ‘very strong'”.  Now despite the similarity of the alternative name “dolphinfish” to the aquatic mammal “dolphin”, they are not the same animal!  So don’t worry–it’s not Flipper!

Mahi mahi is a great eating fish.  The flesh is pale pink, firm and mild flavored and it’s suitable to a variety of cooking methods.  In fact I’ll be posting Blackened Mahi Mahi on Sunday. 

NOAA FIshwatch classifies US Mahi mahi as an environmentally responsible seafood.  But be aware that its mercury levels are considered moderate (about like chunk light canned tuna).  So adults shouldn’t consume it more than six times a month per the NRDC.  (Consult a medical professional for advice if pregnant, breastfeeding or feeding young children.)

Baked Mahi Mahi

Why You’ll Love This!

Flavorful.  With creamy coconut milk, rich cashews and a hint of spice, this is a tasty and unusual entrée. 

Easy.  Just mix up a few ingredients, then bake.  How easy is that!

Healthy.  Eaten in moderation, mahi mahi is lean and loaded with protein.  (Just be aware of the “moderate’ mercury levels.)  

Baked Mahi Mahi

What You’ll Need

Ingredient Notes

  • Mahi Mahi.  This tender firm meaty fish is perfect topped with coconut milk and nuts.
  • Cashews.  Provides a crunchy and tasty topping,
  • Cornstarch.  Helps everything adhere.
  • Cayenne Pepper.  Adds a slight spice accent.
  • Coconut Milk.  Provides tasty tropical flavor and adds moisture.
  • Salt.  Enhances flavor.

Special Tools

  • No special tools are needed!

Step by Step Directions

Pat the fish dry (I like to use a cloth to avoid waste).

Pat dry

Dredge in cornstarch, then coconut milk

Dredge in coconut milk

Dip in cashews to coat top.

DIp in cashews

Place next to each other in baking dish and top with remaining coconut milk.

top with remaining coconut milk 

Bake, then enjoy.

How to Serve

For a balanced meal, I like to serve Baked Mahi Mahi with a hot vegetable and starchy side like rice or bread.  Then I’ll add a salad, often something light and casual like cole slaw, Easy Thai Carrot Salad or Classic Carrot Raisin Salad. 

And as I’ve mentioned, it’s quick enough for a weeknight dinner.

Now although the recipe is very easy to make, I think it’s flavorful enough to serve for a company dinner!  Then I’ll add a more formal salad like Tuscan Kale Salad and maybe a light soup like Tomato Parmesan Soup that I can cook ahead and rewarm. 

Yup, stay out of the kitchen and enjoy your guests!

Baked Mahi Mahi

Variations and Special Diets

It’s common to see Baked Mahi Mahi made with macadamia nuts, so give that a try if you’d like a more Hawaiian Mahi Mahi recipe.  Of course, cashew nuts have a similar richness and are a lot more economical!  Not to mention delicious!  So either way is lovely!

This recipe is suitable for dairy-free, gluten-free and low-carb diets. 

Preparation and Leftovers

Leftover cooked fish can be kept, covered, in the refrigerator for 3-4 days per the USDA.

This uses a half can of coconut milk.  Unless you have another use for it, I suggest that you freeze the remaining coconut milk.  While some sources say it will last for a week, I have seen it develop off flavors within a few days.

Baked Mahi Mahi

Tips & FAQs

Rarely, you will find mahi mahi that has a dark “blood line” running down the flesh.  If you do, this should be removed for best flavor.

If you try to avoid GMOs, consider buying organic cornstarch.  Organic regulations prohibit the use of GMO products.

Baked mahi mahi

Baked Mahi Mahi with Cashew Crust

Quick enough to sandwich between activities and special enough to serve to guest, Cashew Crusted Mahi Mahi is a delicious seafood entree!
Author: Inger
5 from 1 vote
Prep Time 10 mins
Cook Time 20 mins
Total Time 30 mins
Course Main Dish
Servings 4
Calories 452 kcal


  • 1 1/2 lbs. Mahi Mahi 4-6ounce portions
  • 1 cup Cashews Chopped, I prefer raw unsalted
  • 1/4 cup Cornstarch
  • 1/4 teaspoon Cayenne Pepper
  • 7 ounces Coconut Milk 1/2 can, I freeze the remainder
  • ½ teaspoon salt


  • Rinse fish and pat dry.
  • Fill one bowl with coconut milk, another with chopped cashews and a third with a mix of the cornstarch, cayenne pepper, salt and pepper.
  • Dredge the top of the first piece of fish in cornstarch mixture and shake off excess.
  • Dip first fillet into the coconut milk then lay on chopped cashews to pick up a top crust of cashews. Place fillet, cashew side up, in baking dish sprayed with non-stick spray.
  • Repeat with the remaining fillets, snugging them tightly one next to the other in the baking dish. Top with the remaining coconut milk.
  • Bake at 350 degrees for 20 minutes until golden and cooked through.


Calories: 452kcalCarbohydrates: 19gProtein: 38gFat: 26gSaturated Fat: 12gPolyunsaturated Fat: 3gMonounsaturated Fat: 8gCholesterol: 124mgSodium: 451mgPotassium: 1032mgFiber: 1gSugar: 2gVitamin A: 358IUVitamin C: 1mgCalcium: 47mgIron: 6mg
I am not a health professional and nutrition data is calculated programatically. Accuracy may vary with product selection, calculator accuracy, etc. Consult a professional for the best information.
Tried this recipe?Let us know how it was!

Originally published on 11/6/2016

12 thoughts on “Baked Mahi Mahi with Cashew Crust

  1. David Scott Allen

    I love how simple this is, but I also love that you using coconut milk for it. This is definitely one. Mark and I would love to try once our “I don’t need anything from the sea” friend moved into his house in a couple of weeks.

    1. Inger Post author

      I was surprised that a couple night classes would do this to me. But my sister, who studied art, let out a big laugh and said “I could have told you photography would take a lot of time!”

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