Costco Kirkland Signature Flank Steak with Lime Cilantro Marinade Review

The Costco in Maui had an impressive selection of ready-to-heat meals and marinated meats that we don’t have here in Canada. This Kirkland Signature Flank Steak with Lime Cilantro Marinade was one product I hadn’t seen before, and since my husband loves steak and doesn’t mind cilantro, we decided to give it a try. After cooking and tasting it, we were pleasantly surprised by both the quality and flavor. Find out what impressed us so much by reading the review below!

Image of the Costco Kirkland Signature Flank Steak with Lime Cilantro Marinade pre made meal sitting on a table unopened.

Location in Store

The steak with marinade is located in the refrigerated pre-made meal section of Costco near the Kirkland Signature Burger Steak with Gravy and the Kirkland Signature Enchilada Bake. The item number is 40421.

Taste

I cooked the steak for about 11 minutes over medium heat on the barbecue and ended up cooking it a bit more than I had hoped. I was aiming for the minimum recommended temperature (145°F), but it came out closer to 155–160°F. Somehow it still looked about medium rare when I cut into it, so I was happy with the result. I poured the sauce over the steak after cooking it. The sauce is double-cupped to help prevent contamination.

Image of the flank steak after being grilled, there is no marinade on it yet.

The steak was fairly tough and chewy, but the flavor was nice. The lime-cilantro marinade and sauce (which I think were the same) add a mild but pleasant taste. Honestly, all I could really taste was a hint of lime and a well-seasoned steak. The meat is the star, which is a good thing.

Image of the steak after being cooked and sliced in a white serving dish.

I didn’t mind the fact that the steak was a bit chewy. I expected that with flank steak. The quality of the meat was good, with no gristle that I noticed.

Top down image of an open container of the cilantro lime marinade that comes with the steak.

Cost

The steak costs $14.99 per pound, and my steak weighed 1.96 pounds, so I paid $29.38 for the flank steak with marinade. Beef is quite expensive these days, so that doesn’t seem ridiculously overpriced, but I do think you’re definitely paying for the convenience.

Image of the Kirkland Signature Flank Steak with Cilantro Lime Marinade tray sitting on a table opened so you can see what it looks like raw.

Convenience

There are cooking instructions for preparing the steak on the barbecue or in the oven. For food safety, the label recommends cooking the steak to a minimum internal temperature of 145 degrees Fahrenheit.

Image of a steak with marinade on it cooking on a grill outside.

The steak and marinade have a best-before date that is three days after the packaging date, and I wouldn’t recommend freezing them.

Closeup image of the ingredients and cooking instructions for the steak.

You could use the steak to make tacos or fajitas, or serve it with roasted potatoes, Mexican rice, or a salad. The cilantro-lime marinade reminds me of Mexican food, but we simply served it with potatoes!

Image of the steak cooking on a grill outside.

Nutrition

Calories


A 112-gram serving contains 190 calories, 10 grams of fat, 300 milligrams of sodium, 6 grams of carbohydrates, 0 grams of fiber, 4 grams of sugar, and 18 grams of protein. These nutrition facts include the marinade that comes with the steak.

Top down image of the entire flank steak cooked and sitting in a glass dish with marinade on top.

Ingredients

I was surprised to see shrimp base and whey on the ingredients list. These ingredients are likely part of the seasoning or marinade. The product uses gluten-free soy sauce, which I’m sure many people who are gluten intolerant will appreciate.

The flank steak with lime cilantro marinade contains crustaceans/shellfish, milk, sesame, and soy. It may also contain wheat, egg, tree nuts, and fish because it is processed in a facility that handles foods containing these allergens.

Closeup image of the label on the flank steak with marinade showing cooking instructions, sell by date, cost and ingredients.

Scoring

Taste: 9.5/10

Cost: 7.5/10

Convenience: 6.5/10

Nutrition: 7/10

Overall

Give it a try!

I would buy this again if they started selling it here in Canada. The flavor of the steak and marinade was nice and the quality of the meat seemed good.

Have you tried the Costco Kirkland Signature Flank Steak with Cilantro Lime Marinade? What did you think of it?

Is the Kirkland Signature Flank Steak with Cilantro Lime Marinade gluten-free?

Yes it is but may contain wheat due to cross-contamination.

How much does the Costco Kirkland Signature Flank Steak with Cilantro Lime Marinade cost?

$14.99 per pound so it depends how much your particular steak weighs.

Is the Costco Kirkland Signature Flank Steak with Cilantro Lime Marinade dairy-free?

Surprisingly not!


Please note that this review was not paid for or sponsored by any third party. This product was purchased by Costcuisine for the purpose of producing this review. The opinions in this review are strictly those of Costcuisine. Costcuisine is not affiliated with Costco or any of its suppliers. In the event that Costcuisine receives compensation for a post from the manufacturer of a product or some other third party, the arrangement will be clearly disclosed (including where the manufacturer of a product provides Costcuisine with a free sample of the product).

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