How do you cook Costco Frozen Cod?

Frozen cod from Costco can be a budget-friendly, convenient way to incorporate seafood into your diet. With just a little preparation and cooking, you can enjoy delicious meals full of health benefits. In this article, we will discuss the best ways to prepare and cook frozen cod from Costco.


Are you looking for a quick and easy way to prepare fish at home? Look no further than Costco’s frozen cod selection. Buying in bulk not only saves money but also ensures that you always have fish on hand for healthy weeknight dinners. In this article, we’ll go over everything you need to know about preparing and cooking frozen cod from Costco.

Preparing Frozen Cod for Cooking

Before cooking frozen cod, it is important to properly thaw it first. The best method is to transfer the fish from the freezer to the refrigerator and let it thaw overnight. If you don’t have time to let it thaw overnight, you can place the fish in a resealable plastic bag and set it under cold running water until thawed.

It is important not to use quick-thaw methods like microwaving or letting it sit at room temperature as these methods can damage the texture and flavor of the fish.

Seasoning and Marinades

Although frozen cod has a mild flavor on its own, adding seasonings or marinades can enhance its taste profile greatly. For an easy seasoning option, try rubbing salt, pepper, olive oil, and lemon juice all over both sides of your thawed fish before cooking.

For more complex flavors, you might try marinating the fish in herbs like rosemary or thyme with olive oil and vinegar before baking or grilling.

Cooking Methods

When it comes time to cook your frozen cod from Costco, there are many different ways you can do so based on personal preference and convenience factors.

Baking: Start by preheating your oven to 400F (200C). Line a baking sheet with parchment paper and place your thawed cod fillets on it. Season as desired and bake for 12-15 minutes, or until the fish is opaque and flakes easily with a fork.

Pan-frying or Grilling: Heat a tablespoon of olive oil in a skillet over high heat or preheat your grill to medium-high. Once hot, add your thawed cod fillets to the pan or grill. Cook for 3-4 minutes per side, or until the fish is crispy and charred on the outside but still moist on the inside.

No matter which cooking method you choose, be sure to avoid overcooking your fish to maintain its flavor and texture.

Pairing Side Dishes with Frozen Cod

One of the benefits of choosing frozen cod from Costco is how versatile it is when it comes to pairing side dishes. Simple sides like roasted vegetables or rice pilaf are great options, but more complex recipes like spinach risotto or Brussels sprouts gratin can also complement this mild-flavored fish well.

Don’t be afraid to experiment with different flavors and textures until you find the perfect combination that works for you.

Leftovers: How to Reheat Frozen Fish Properly

If you have extra cooked fish leftover from dinner time, it’s important to store it properly and reheat it safely before eating again.

Store any leftover cooked fish in an airtight container in the fridge for up to three days or freeze it for future use. When reheating either cooked or uncooked frozen cod, make sure it has reached an internal temperature of at least 145F (63C) before serving.

Tips for Buying High-Quality Frozen Cod at Costco

When purchasing frozen seafood at stores like Costco, there are a few things you should look out for to ensure quality:

  • Look for fillets that have no freezer burn.
  • Choose fillets that are firm and not mushy.
  • Check expiration dates and packaging for any signs of damage.

If you follow these guidelines, you can be assured that your frozen cod is of the highest quality.


Frozen cod from Costco can be an easy way to enjoy seafood in budget-friendly and convenient ways. With a little preparation and cooking time, you can have delicious meals full of health benefits right at home. Remember to properly thaw your fish before seasoning and cooking it, experiment with different cooking methods and side dishes, store leftovers properly, and look for high-quality frozen seafood while shopping. So don’t hesitate to head over to your local Costco now!


  1. Q: What are some tips for cooking Costco Frozen Cod?

A: It’s important to thaw the cod before cooking it. Place it in the fridge overnight or run it under cold water until thawed. Then, consider marinating the fish for added flavor and seasoning with salt, pepper, and any other desired herbs or spices.

  1. Q: Can I cook Costco Frozen Cod in a pan on the stove?

A: Yes! Heat oil in a pan over medium-high heat and add the thawed cod fillets. Cook for about 3-4 minutes on each side, until golden brown and cooked through.

  1. Q: Is baking Costco Frozen Cod a good option?

A: Definitely! Preheat your oven to 400°F and place the thawed cod fillets onto a baking sheet lined with parchment paper or foil. Brush with butter or oil and seasonings of choice, then bake for 12-15 minutes or until flaky and cooked through.

  1. Q: What is a creative way to serve Costco Frozen Cod?

A: Try making fish tacos by grilling or pan-searing the cod fillets, then flaking them into small pieces. Serve them on warm tortillas with coleslaw, avocado, salsa, and lime wedges for squeezing over top. Yum!

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