Walnut-Crusted Baked Cod

Walnut-Crusted Baked Cod is a simple yet flavorful seafood dinner that feels special enough for guests while being easy enough for busy weeknights. Tender cod fillets are coated in a crispy walnut topping packed with garlic, herbs, and Parmesan, then baked until golden and flaky. The crunchy nut crust adds rich texture while keeping the fish moist and delicious. This healthy baked cod recipe comes together quickly with fresh ingredients and pairs beautifully with vegetables, rice, or salad. If you’re looking for a light, protein-packed dinner with plenty of flavor, this recipe is a fantastic choice.

Why You’ll Love This Recipe

• Crispy walnut topping adds rich texture and flavor
• Ready in about 30 minutes from start to finish
• High-protein dinner that feels fresh and light
• Easy oven-baked recipe with minimal cleanup
• Perfect for weeknight dinners or entertaining guests
• Naturally low carb and easy to pair with healthy sides

Ingredients Needed

For the Cod

• 4 cod fillets (about 6 oz each)
• 1 tbsp olive oil
• ½ tsp salt
• ½ tsp black pepper
• 1 tsp lemon zest

For the Walnut Crust

• ¾ cup finely chopped walnuts
• ¼ cup grated Parmesan cheese
• ¼ cup panko breadcrumbs
• 1 tsp garlic powder
• 1 tsp dried parsley
• ½ tsp smoked paprika
• 2 tbsp melted butter

For Serving

• Lemon wedges
• Fresh parsley, chopped

Step-by-Step Instructions

1. Preheat the oven to 400°F. Lightly grease a baking dish or line a sheet pan with parchment paper.
2. Pat the cod fillets dry with paper towels. Brush with olive oil and season with salt, pepper, and lemon zest.
3. In a bowl, combine chopped walnuts, Parmesan cheese, panko breadcrumbs, garlic powder, parsley, smoked paprika, and melted butter. Stir until evenly mixed.
4. Press the walnut mixture firmly onto the top of each cod fillet.
5. Arrange the fillets in the prepared baking dish.
6. Bake for 12–15 minutes or until the fish flakes easily with a fork and the crust is golden brown.
7. Serve immediately with fresh parsley and lemon wedges.

Tips for Success

• Pat the cod dry before adding the topping so the crust sticks better.
• Use fresh cod fillets for the best texture and flavor.
• Finely chop the walnuts for an even crispy crust.
• Avoid overbaking to keep the fish moist and flaky.
• Add extra lemon juice before serving for a bright finish.
• Use an instant-read thermometer and cook fish to 145°F internally.

Variations & Substitutions

• Swap cod with halibut, haddock, or salmon.
• Use pecans instead of walnuts for a slightly sweeter flavor.
• Make it gluten-free by using gluten-free breadcrumbs.
• Add fresh dill or thyme to the crust mixture.
• Replace Parmesan with Asiago or Romano cheese.
• Add a pinch of cayenne pepper for heat.

Serving Suggestions

• Serve with roasted asparagus or green beans.
• Pair with garlic mashed potatoes or wild rice.
• Add a fresh cucumber salad on the side.
• Serve with steamed broccoli and lemon butter.
• Enjoy with a simple spinach salad for a lighter meal.

Storage & Reheating

Store leftover Walnut-Crusted Baked Cod in an airtight container in the refrigerator for up to 3 days. Reheat gently in a 350°F oven for about 8–10 minutes to help maintain the crispy topping. Avoid microwaving if possible, as the crust may soften. Freezing is not recommended because the walnut topping can lose texture after thawing.

Frequently Asked Questions

Can I use frozen cod for this recipe?

Yes. Thaw the cod completely and pat it dry before adding the walnut crust.

How do I know when cod is fully cooked?

The fish should flake easily with a fork and reach an internal temperature of 145°F.

Can I make Walnut-Crusted Baked Cod ahead of time?

You can prepare the walnut topping ahead and refrigerate it separately until ready to bake.

What can I use instead of walnuts?

Pecans, almonds, or pistachios work well in this recipe.

Is this recipe gluten-free?

It can be made gluten-free by using gluten-free breadcrumbs.

Can I air fry Walnut-Crusted Cod?

Yes. Air fry at 390°F for about 10–12 minutes depending on thickness.

platehacks

Walnut-Crusted Baked Cod

Walnut-Crusted Baked Cod is a light yet satisfying seafood dinner featuring flaky cod fillets topped with a crispy walnut, Parmesan, and herb crust. This healthy baked fish recipe is quick to prepare, naturally low carb, and perfect for both busy weeknights and elegant dinners.

Print Recipe Pin Recipe

Prep Time 15 minutes mins

Cook Time 15 minutes mins

Total Time 30 minutes mins

Servings: 4 fillets

Course: Dinner

Cuisine: American

Calories: 430

Ingredients Equipment Method Notes

Ingredients

  

• 4 cod fillets (about 6 oz each)
• 1 tbsp olive oil
• 1/2 tsp salt
• 1/2 tsp black pepper
• 1 tsp lemon zest
• 3/4 cup finely chopped walnuts
• 1/4 cup grated Parmesan cheese
• 1/4 cup panko breadcrumbs
• 1 tsp garlic powder
• 1 tsp dried parsley
• 1/2 tsp smoked paprika
• 2 tbsp melted butter
• lemon wedges for serving
• fresh parsley, chopped for serving

Equipment

• baking dish
• sheet pan
• parchment paper
• mixing bowl
• measuring cups and spoons
• paper towels

Method

 

1. Preheat the oven to 400°F. Lightly grease a baking dish or line a sheet pan with parchment paper.
2. Pat the cod fillets dry with paper towels. Brush with olive oil and season with salt, black pepper, and lemon zest.
3. In a bowl, combine chopped walnuts, Parmesan cheese, panko breadcrumbs, garlic powder, dried parsley, smoked paprika, and melted butter. Stir until evenly mixed.
4. Press the walnut mixture firmly onto the top of each cod fillet.
5. Arrange the fillets in the prepared baking dish.
6. Bake for 12–15 minutes or until the fish flakes easily with a fork and the crust is golden brown.
7. Serve immediately with fresh parsley and lemon wedges.

Notes

Pat the cod dry before adding the topping so the crust adheres properly. Avoid overbaking to keep the fish tender and flaky. Use finely chopped walnuts for the best texture. Add extra lemon juice before serving for fresh flavor. This recipe also works well with halibut, haddock, or salmon.