Costco Frozen Mahi-Mahi (Kirkland) Review

Author’s note: I wasn’t paid or compensated in any way for this review and I have no affiliation with Costco.
Two fins up!
I previously reviewed Costco’s frozen Sockeye Salmon, which was pretty dang good. Costco’s Mahi-Mahi is significantly cheaper — and I do love mahi — so I decided to give it a try. My wallet decided, anyway.

The filets are individually vacuum-sealed in plastic. These are completely skinless filets, unlike Costco’s Sockeye Salmon. They also seem to already have the “blood line” removed, which is convenient.

This mahi has a firm, tight texture — and a verrrry pale pink color. Mine smelled super fresh, and not the tiniest bit “fishy” after defrosting. Which made me happy. Did you know that frozen fish is often fresher than “fresh” fish? Here’s an interesting article from AllRecipes about that.

Anyway, I digress. I chose to cook my mahi in a pan with some butter and some sweet chili seasoning mix. This was quick and easy, and the fish stayed juicy and tender. I only used three ingredients: mahi, butter, and the chili seasoning blend. Ok, and some salt. That’s it. The chili seasoning is sprinkled on top of the filet, and I flip the fish over after 5-6 minutes and cook it on the other side.
Here’s a different recipe for pan-cooked mahi, if you don’t like my way. Hmmph!

Behold, my fish.
I mean. Look at that. Go on. It’s beautiful, and you know it.
The finished result was excellent — the fish was just the right balance of firm and tender. It was moist, succulent, and flavorful (what makes mahi flavor so good, anyway?). I didn’t find any bones in mine — although the package says you might!

I ate mine on a salad. Or next to a salad. Or whatever. There was salad and fish, mmmkay? It was delicious. And yes, I may or may not have artfully arranged those tomatoes to be an even intervals in my photo.

Here is what my mahi looked like in its deep insides. Super tender. Not the slightest bit rubbery. If you’re into flaking your fish, this one flakes nicely.

The only negative thing I have to say about this fish is the portion sizes & packaging. Although there are 12 servings per bag, there are only 6 filets. Each filet is two servings. This means you will always have to thaw and cook two portions at once, since the fish cannot be re-frozen. As a single person, this is much less convenient. For a couple or family, it probably doesn’t matter.
But now you know. You’re welcome.
Nutrition Facts

Here are the nutrition facts. A 4-ounce serving (again, HALF a filet) has only 100 calories, which is excellent. You get 21 grams of protein and only 1 gram of fat. No carbs. None.
Ingredients in Costco Kirkland Frozen Mahi

Here are the ingredients:
- Mahi-Mahi (Fish)
The end. I approve.
(and, it’s Wild-Caught!)
Preparation Instructions

According to the label, you are supposed to remove the fish from the plastic and thaw in the fridge.
Price and Shelf-Life
The 3-pound bag of Costco Mahi currently costs $28 — it’s increased in price almost $6 in the past few months. Since there are 12 servings in the bag, each portion costs $2.33. There are six filets total, so each filet is $4.66.
The expiration date on the package allows me approximately 1.5 years to eat these.
This is a Kirkland Signature (Costco store brand) product, and the item # is 251704.
Dramatic Conclusion
I’ll definitely buy this frozen mahi from Costco again! Two fins up!
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Check out a few other fish-y reviews I’ve written: