Cajun Garlic Butter Baked Cod — 15-Minute Dinner Recipe

This Baked Cod recipe is a flavorful, healthy meal made with just a handful of ingredients and ready in about 15 minutes. Cod fillets are topped with a zesty Cajun garlic butter and baked until tender and flaky. It’s an easy weeknight dinner that’s mild in flavor, family-friendly, and naturally gluten-free.

A fillet of baked cod with Cajun butter on a bed of blanched green beans
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✔️ Baked Cod Fillets

This is a simple and delicious way to prepare cod fillets. White fish like cod have a mild flavor that takes on seasonings well and bake up with a delicate, flaky texture when cooked correctly. Whether you’re new to cooking fish or just want a quick, nutritious dinner, this recipe is straightforward and forgiving.

Cod is a lean protein with a tender texture and subtle flavor. When baked properly it won’t taste overly “fishy” and pairs beautifully with buttery, garlicky, or citrusy seasonings.

⭐️ Why This Recipe Works

  • Healthy: Cod is a lean, low-carb protein with beneficial nutrients and naturally gluten-free.
  • Quick and Easy: Minimal prep and only a few ingredients—ready in about 15 minutes, ideal for weeknights.
  • Easy Cleanup: Baked in one dish or on a rimmed sheet pan for fast cleanup.
  • Budget Friendly: Cod is often more affordable than other white fish like halibut or sea bass.
Flaky piece of fish pulled from a fillet with a fork

✔️ Baked Cod Fillets Recipe Ingredients

See the recipe card below for the full ingredient list and exact quantities.

  • Cod fillets: Choose loins or fillets, skin on or off. Skin helps protect the fish while baking and can be removed after cooking.
  • Butter: Salted or unsalted, softened.
  • Garlic: Fresh minced garlic is preferred; garlic powder can be used if needed.
  • Cajun seasoning: Use a homemade mix or store-bought—adjust salt if the blend is salty.
  • Salt and pepper: To taste; kosher or sea salt recommended.
  • Garnish (optional): Lemon wedges and chopped fresh parsley.
All the ingredients needed to make this easy baked cod recipe

🔎 How To Bake Cod?

Basic steps are below; refer to the recipe card for exact measurements and details.

  1. Prep: Preheat oven to 400°F (204°C).
  2. Season: Pat fillets dry and place in a baking dish or on a rimmed sheet. Season both sides with salt and black pepper.
  3. Make Cajun Butter: Mix softened butter with minced garlic and Cajun seasoning.
  4. Bake: Spoon the butter mixture over each fillet and bake uncovered until opaque and flaky. Serve immediately.
Mixing Cajun butter in a white bowl
Uncooked fillets of cod fish topped with Cajun butter in a baking dish ready to be cooked in the oven
Baked Cod seasoned with flavorful Cajun butter right off the oven

What Type Of Cod Fish To Buy

Look for the freshest fillets available at your grocery store or fishmonger. You can buy a large fillet and portion it yourself or buy individual portions. Skin-on fillets help prevent drying during baking and the skin is easy to remove after cooking if you prefer not to eat it.

✔️ Fresh Cod vs Frozen Cod

Frozen-caught fish is typically processed and frozen soon after harvest, which preserves quality. “Fresh” fish in stores is often previously frozen and thawed. If you have access to true fresh catch (e.g., local, just-off-the-boat fish), it can be exceptional—but frozen is a reliable, high-quality option in most locations.

A plate with a fillet of baked cod over green beans topped with Cajun butter

Can I Use Frozen Fish For This Recipe?

Yes. Thaw fillets in the refrigerator overnight and pat them dry before seasoning to remove excess moisture.

Could I Use Different Seasonings To Make Baked Cod?

Absolutely. Swap Cajun seasoning for Old Bay, lemon pepper, or a lemon-garlic-herb butter. Citrus zest and fresh herbs also work well.

What Temperature Should Cod Be Cooked At In The Oven?

This recipe uses 400°F (204°C) baked uncovered. Make sure the oven is preheated for consistent results.

🔎 How To Bake Cod FAQs

Cooked Cod Safe Internal Temperature

The FDA recommends an internal temperature of 145°F (63°C) for fish. For many home cooks, removing the fillet at 135–140°F and allowing it to rest a few minutes will give a perfectly cooked, slightly carryover-finished fillet. Use an instant-read thermometer for accuracy.

✔️ How Long Do You Bake Cod Fish?

Bake for about 10–12 minutes, depending on thickness. The fish is done when it turns opaque and flakes easily with a fork.

How To Know When Baked Cod Is Done

Besides checking temperature, look for opaque flesh and easy flaking with a fork. Avoid overcooking to prevent dryness and a rubbery texture.

Plates served with easy baked fish fillets with cajun butter and green beans

Is Baked Cod Fish Healthy?

Yes. White fish like cod is a lean source of protein with vitamins and minerals, low mercury compared to some larger species, and can be part of a heart-healthy diet when prepared with modest amounts of fat.

Do You Bake Fish Covered or Uncovered?

For this dish, bake the fillets uncovered. Most baked fish recipes don’t require covering unless you want to steam the fish gently or keep it extra moist in certain preparations.

Why Is My Baked Cod Tough/Rubbery?

Tough, rubbery cod is usually overcooked. Fish loses moisture and firms up as it cooks; remove it promptly when opaque and flaky to preserve a tender texture.

Can I Freeze Baked/Cooked Cod?

Yes. Cool completely, then store in a freezer-safe container or resealable bag for up to one month. Thaw in the refrigerator before reheating.

✔️ Storing and Reheating

Storing Leftovers: Eat within 1–2 days for best quality. Store in an airtight container in the refrigerator.

Reheating: Reheat gently in a low oven (about 275°F / 135°C). Place fillets in a baking dish or on a rack over a sheet pan and cover loosely with foil to retain moisture. Time depends on thickness; a 1-inch fillet may take 10–12 minutes to warm through.

Easy baked cod fillets served over green beans

What To Serve With Baked Cod

Baked cod pairs nicely with blanched green beans, a simple salad, roasted potatoes, mashed potatoes, or a light grain salad. Fresh lemon and herbs brighten the plate and complement the Cajun butter.

Baking Cod Fillets Tips

  • Don’t overcook—remove when opaque and flaky.
  • Adjust Cajun seasoning if using a salty store-bought blend.
  • Homemade seasoning lets you control salt and spice levels.
Spoonful of seasoning mix lifted from a white bowl

Easy Cajun Seasoning

Make your own Cajun seasoning to control the salt and spice level. Homemade blends are inexpensive and customizable.

Recipe Here

Try These Other Seafood Ideas:

  • Maryland Crab Cakes
  • Blackened Fish Tacos
  • Grilled Mahi Mahi with Mango Sauce
  • Cajun Shrimp and Grits
  • Shrimp Fettuccine Alfredo
  • New England Clam Chowder
  • Lobster Bisque
Filet of cod baked with Cajun butter served on a bed of blanched green beans

Baked Cod Recipe with Cajun Butter

5 from 1 review

img 21541 14Kathy McDaniel

White cod fillets smothered in flavorful Cajun butter and baked until perfectly flaky. This healthy baked cod is easy and fast—great for busy weeknights.
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Prep 5
Cook 10
Total 15
Makes 4 servings

Equipment

  • Baking Dish 2.5 Qt
  • Instant Read Thermometer

Ingredients

  • 4 cod fillets (about 6 ounces each)
  • Salt and ground black pepper to taste
  • 5 tablespoons butter, softened
  • 2 garlic cloves, minced
  • 1 tablespoon Cajun seasoning, (check salt level and adjust accordingly)
  • Chopped parsley and lemon wedges or slices to serve

Instructions

  1. Preheat the oven to 400°F (204°C).
  2. Pat dry the fish and lay it in a baking dish (2.5 or 3 Qt depending on size).
  3. Season the fish on both sides with salt and ground black pepper.
  4. Combine the butter, minced garlic and Cajun seasoning in a small bowl.
  5. Top each fillet with about a spoonful of the butter mixture.
  6. Bake for about 10 to 12 minutes, depending on thickness. The fish is done when it turns opaque and flakes easily with a fork. Serve immediately with lemon wedges and chopped parsley.

Notes

  • Don’t overcook the fish; it becomes dry and chewy if left in too long.
  • Adjust the amount of Cajun seasoning if using a salty store-bought blend.
  • Homemade Cajun seasoning is an easy way to control salt and spice levels.

Nutrition

Calories: 168 kcal, Carbohydrates: 1 g, Protein: 8 g, Fat: 15 g.

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