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Tips & Recipes

Mahi Mahi, Ahi, and More: The Fish Behind Our Famous Tacos

joey-fullmer
joey-fullmer Founder & Head Chef
6 min read
Variety of fresh Hawaiian fish species including mahi mahi, ahi tuna, and ono laid out on ice

The Hawaiian Waters Advantage

Finding the perfect fish taco on Oahu requires understanding the local waters. The Hawaiian pelagic fishery is massive, generating tens of millions of dollars annually.

As of 2026, the Hawaii commercial fishing industry is a $32.8 million powerhouse.

We are dedicated to providing high-quality Mexican cuisine and exceptional customer service to our local community.

Sunset Magazine even named our catch the #1 fish tacos in Hawaii. Our menu adapts directly to what the local longline boats bring in each morning.

Let’s explore Mahi Mahi, Ahi, and More: The Fish Behind Our Famous Tacos to see exactly what makes each bite special.

Mahi Mahi: The Fan Favorite

Also known as dolphinfish, mahi mahi is the undisputed champion of the island taco scene. This brilliantly colored fish thrives in tropical waters and grows incredibly fast.

Flavor Profile and Nutrition

Mahi mahi boasts a mild, slightly sweet flavor that appeals to almost everyone. The meat is exceptionally lean.

A standard 3-ounce fillet contains less than one gram of total fat and only about 93 calories. This nutritional profile makes it an ideal, healthy canvas for bright tropical salsas.

Texture and Preparation Tips

The flesh is firm and features large, moist flakes that hold together perfectly inside a tortilla. We always ensure the dark bloodline running down the center of the fillet is completely removed.

That specific dark muscle carries a muddy flavor that can ruin a good cut. Once trimmed, the fish maintains its structure beautifully over a hot grill.

Best Pairings and Peak Seasons

Our team loves serving this fish with a house-made mango salsa, pickled red onion, and cilantro lime crema. The sweetness of the mango highlights the mild fish, while the acidity cuts through the crema.

You can find mahi mahi year-round in the US Pacific. The absolute best catches arrive during the two peak spawning seasons from March to May and September to November. We feature Mahi Mahi, Ahi, and More: The Fish Behind Our Famous Tacos prominently because of this reliable quality.

Ahi Tuna: The Premium Choice

Yellowfin and bigeye tuna, collectively known as ahi, represent the crown jewels of the US Pacific fleet. Hawaii actually produces over 86 percent of the national bigeye tuna revenue.

A Rich Flavor Profile

Ahi delivers a rich, meaty flavor that stands completely apart from lighter catches. It tastes incredibly clean and buttery.

The subtle sweetness of the meat intensifies beautifully when exposed to high heat. There is a profound depth to this tuna that feels substantial and deeply satisfying.

Steak-Like Texture

Fresh ahi possesses a dense, smooth texture that closely mimics a fine beef steak. We sear our tuna very quickly over a blazing hot grill.

This technique leaves the center rare and silky while developing a delicious outer crust. Searing locks in the moisture and prevents the lean meat from drying out.

Pairings and Availability

Our premium ahi tacos feature a sesame ginger glaze, wasabi aioli, and crispy wonton strips. This bold combination highlights the Japanese-Hawaiian fusion that defines modern island cuisine.

Ahi swims through local waters all year long. The most massive schools usually migrate past Oahu during the warm summer months.

Ono: The Speed Demon

Known on the mainland as wahoo, ono ranks among the fastest predators in the ocean. These torpedo-shaped hunters can reach swimming speeds of up to 60 miles per hour.

The Hawaiian name literally translates to “delicious.”

A Delicate Flavor

Ono offers a mild, delicate taste that is noticeably sweeter than mahi mahi. It tastes wonderfully clean and lacks the strong fishy notes found in darker fillets.

Many tourists trying seafood tacos for the very first time find ono to be the most approachable choice.

Flaky and Tender Texture

The remarkably white, fine-grained flesh is the defining characteristic of this species. It flakes into beautiful, feathery layers that practically dissolve on the tongue.

We have to watch the grill closely because ono is extremely lean and can overcook in seconds. Cooked properly, it delivers a buttery smoothness that keeps locals coming back.

The Perfect Taco Pairing

Our kitchen pairs ono with a vibrant tropical fruit slaw, fresh lime juice, and a signature hot sauce. The lightness of the wahoo allows these bright flavors to take center stage.

Local fishermen usually catch ono incidentally while dropping deep longlines for bigeye tuna. The highest quality yields typically arrive between May and September.

Opah: The Hidden Gem

Moonfish, or opah, is a massive, disc-shaped species with stunning orange and pink coloring. It remains one of the most fascinating and delicious deep-water catches available in the US today.

A Biological Marvel

In 2015, NOAA researchers discovered that opah is the first fully warm-blooded fish ever recorded. The fish constantly flaps its bright red pectoral fins to race through the chilly ocean depths.

This movement generates heat that warms its entire body through a unique blood vessel structure called the rete mirabile. Staying warm gives the opah a massive predatory advantage in cold water.

Versatile Flavor and Texture

Opah delivers a rich, slightly fatty flavor that sits perfectly between tuna and swordfish. Different sections of the moonfish yield completely different culinary experiences.

The belly portions taste rich and almost like salmon, while the loin cuts are much firmer. The dense meat provides a satisfying chew that stands up easily to heavy spices.

Unpredictable Availability

We love serving this unique catch with charred pineapple salsa and a smoky chipotle crema. The fatty richness of the moonfish balances the sweet caramelized fruit flawlessly.

Opah is a deep-water dweller, making commercial availability highly unpredictable. Regulars know to order immediately whenever the daily special board features it.

Choosing Your Fish

Deciding on the right filling can be tricky when every option sounds appealing. We built this quick comparison guide to help you find the exact flavor and texture you crave.

The Taco Fish Comparison

Fish SpeciesHawaiian NameFlavor ProfileTextureBest For
DolphinfishMahi MahiMild, slightly sweetFirm, large moist flakesFirst-timers and crowd-pleasing meals
Yellowfin & BigeyeAhi TunaRich, clean, meatyDense, smooth, steak-likeSeafood adventurers wanting a rare sear
WahooOnoVery delicate, sweetHighly flaky, tender, leanThose seeking a light, melt-in-the-mouth bite
MoonfishOpahFatty, complex, richDense, substantial chewReturning locals looking for a unique daily special

Adapting to the Ocean

The beauty of cooking on the coast is that no two days are exactly alike. Our menu adapts to the morning catch, providing a fresh experience every single visit.

Trying a taco flight is a fantastic way to compare these distinct species side by side. Ordering a flight provides three distinct advantages:

  • You sample different flavor profiles back-to-back.
  • You discover new favorites without committing to a full meal of one fish.
  • You experience the freshest cuts available that specific morning.

Every fish has its own story, its own distinct flavor, and its own way of making a meal unforgettable. We invite you to experience Mahi Mahi, Ahi, and More: The Fish Behind Our Famous Tacos for yourself.

Next time you visit the North Shore, stop by the counter and ask about the fresh catch of the day.

Fresh mahi mahi fillet being grilled on an open flame at North Shore Tacos food truck
Mahi mahi is our most popular fish for tacos thanks to its firm texture and mild sweetness
Seared ahi tuna steak with sesame crust sliced for premium fish tacos
Ahi tuna gets a quick sear to keep the center beautifully rare and buttery
mahi mahi ahi tuna ono Hawaiian fish fish guide seafood
joey-fullmer

About the Author

joey-fullmer

Founder & Head Chef

Commercial Food Service LicenseFood Safety Manager Certified

Joey Fullmer has spent 16 years perfecting the art of fish tacos on Oahu's North Shore, combining his passion for fresh seafood with bold Hawaiian-inspired flavors.

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