A close-up image of a keto Mediterranean cod with a walnut crust, served with roasted vegetables and walnuts on a white plate.

Keto Mediterranean Cod Recipe With Walnut Crust: Gluten Free

If you’re looking for a delicious and easy keto dinner idea, you’ll love this Keto Mediterranean Cod Recipe With Walnut Crust.

This recipe is low-carb, gluten-free, and sugar-free, and it’s packed with healthy fats and protein from the fish and the walnuts. Plus, it uses simple ingredients! It has a wonderful flavor from the parmesan cheese, parsley, and dill.

You can serve this dish with some cauliflower rice, green beans, or a side salad for a complete and satisfying meal.

If you’d like to see how I made this recipe, check out my quick YouTube video for helpful process shots and tips!

Keto Mediterranean Cod Recipe With Walnut Crust: Gluten Free

Why I Created This Recipe

I’ve always enjoyed eating fish. Especially cod fish because it has a mild and delicate flavor. It goes well with many sauces and seasonings.

One of my favorite ways to eat fish fillets is with a crispy and cheesy crust, like in this parmesan crusted cod recipe. 

However, I wanted to make a keto-friendly version of this dish. So I decided to use walnuts instead of breadcrumbs for the crust. Walnuts are not only low in carbs, but they also have many health benefits. Such as improving brain function, lowering cholesterol, and providing omega-3 fatty acids. 

I also added some Mediterranean-inspired ingredients, such as lemon zest, garlic powder, and dill, to give this dish some extra zing. The result was a keto Mediterranean cod recipe with walnut crust that was absolutely delicious and easy to make. 

I hope you’ll try it and enjoy it as much as I did.

A glass baking dish containing two pieces of Mediterranean cod with a walnut crust, accompanied by roasted cauliflower and broccoli, placed on a wire rack.
Keto-friendly Mediterranean Cod with Walnut Crust served with roasted veggies for a healthy and delicious meal!

Ingredients

To make this delicious and easy keto dinner, you will need the following ingredients:

  • cod fillets
  • butter
  • walnuts
  • dried parsley
  • dried dill
  • parmesan cheese
  • salt
  • black pepper
  • lemon zest
A close-up image of a keto Mediterranean cod with a walnut crust, served with roasted vegetables and walnuts on a white plate.
Gluten Free Mediterranean Cod With Walnut Crust

Instructions

To make this keto Mediterranean cod recipe with walnut crust, you will need to follow these simple steps:

Preheat your oven to 180°C/360°F. Lightly grease a baking dish with some olive oil or cooking spray.

Place the walnuts in a small food processor. Pulse until they are coarsely chopped. You can also use a knife to chop them by hand. Make sure they are not too fine or too large.

Add the butter, parsley, dill, parmesan cheese, salt, pepper, and lemon zest to the food processor. Pulse until well combined. You should have a crumbly and moist mixture that sticks together when pressed.

A bowl of walnut pesto garnished with whole walnuts on a wooden surface.
Homemade walnut pesto ready to serve, garnished with whole walnuts for an extra crunch.

Pat the cod fillets dry with a paper towel. Place them in a single layer on the prepared baking dish. Spoon the walnut mixture evenly over the top of each fillet, pressing gently to adhere.

Bake the cod for 15 to 20 minutes, or until the fish flakes easily with a fork and the crust is golden and crisp. The internal temperature of the fish should reach 63°C/145°F for optimal doneness.

Serve the keto Mediterranean cod with walnut crust with some lemon wedges, tartar sauce, or your favorite keto-friendly sauce. Enjoy your delicious and healthy meal!

I served mine with some roasted broccoli and cauliflower, which made a perfect low-carb and keto-friendly side dish. You can also try other vegetables, such as asparagus, zucchini, or Brussels sprouts.

Raw cod fillets topped with a green herb walnut sauce, accompanied by broccoli and cauliflower in a glass dish.
Low Carb Mediterranean Cod With Walnut Crust

Frequently Asked Questions (FAQ):

Q: What kind of white fish can I use for this recipe?

A: You can use any kind of white fish that has a mild flavor and a firm texture. Such as cod, haddock, halibut, tilapia, or pollock. I used cod loins for this recipe. It’s thicker and meatier than cod filets. You can use either one. Just make sure to adjust the cooking time depending on the thickness of the fish.

Q: How do I know when the fish is done?

A: The easiest way to check the doneness of the fish is to use a meat thermometer. Insert it into the thickest part of the fish. The internal temperature should reach 63°C/145°F for optimal doneness. You can also use a fork to flake the fish and see if it is opaque and moist. The crust should be golden brown and crisp.

Q: What are some keto-friendly side dishes to serve with this fish?

A: There are many keto-friendly side dishes that you can serve with this fish. Such as cauliflower rice, roasted broccoli, green beans, asparagus, zucchini noodles, or a green salad. You can also add some extra flavor and healthy fats by topping your side dishes with some melted butter, lemon juice, pine nuts, or parmesan cheese.

Q: Can I make this recipe ahead of time or freeze it for later?

A: This recipe is best enjoyed fresh out of the oven, as the crust may lose its crispiness if you reheat it. However, you can make the walnut mixture ahead of time and store it in an airtight container in the refrigerator for up to 3 days. You can also freeze the unbaked fish with the walnut mixture on top in a freezer-safe container for up to 3 months. When you are ready to bake it, thaw it completely in the refrigerator and then bake it as instructed.

Q: How many net carbs are in one serving of this recipe? 

A: One serving of this recipe (one cod fillet with walnut crust) has about 3 grams of net carbs. This is calculated by subtracting the fiber from the total carbs. This recipe is low-carb, gluten-free, and sugar-free. It fits well into a keto or low-carb diet. You can find the complete nutritional information for this recipe in the recipe card section.

Q: How does cod compare to salmon in terms of nutrition and flavor (cod vs salmon)? 

A: Cod and salmon are both nutritious and delicious fish, but they have some differences. Cod is lower in calories and fat than salmon. It’s also lower in omega-3 fatty acids, which are beneficial for heart health. Cod has a firmer texture and a slightly sweeter flavor than salmon. While salmon has a more intense and oily taste. Both fish can be cooked in various ways, such as baking, grilling, or frying.

Q: How long does cod last in the fridge? 

A: The shelf life of cod in the fridge depends on how fresh it was before you bought it and how you store it. Raw cod can last for 1 to 2 days in the fridge. If you keep it in its original packaging or wrap it tightly in plastic wrap. Cooked cod can last for 3 to 4 days in the fridge if you store it in an airtight container. You should always refrigerate cod as soon as possible after purchasing or cooking it. Discard it if it smells or looks bad.

Q: How long does cooked cod last in the freezer? 

A: Cooked cod can be frozen for up to 3 months if you freeze it properly. To freeze cooked cod, first, let it cool to room temperature. Then transfer it to a freezer-safe container or bag and label it with the date. You can also wrap the cod in aluminum foil or freezer paper to prevent freezer burn. When you are ready to eat it, thaw it in the fridge overnight or in the microwave on the defrost setting.

Q: What is the difference between pollock and cod? 

A: Pollock and cod are both white-fleshed fish that belong to the same family, but they have some differences. Pollock has a milder flavor and a softer texture than cod. While cod has a meatier texture and a higher fat content than pollock. Pollock is also more eco-friendly than cod, as it is more abundant and sustainably fished.

Q: What are some Whole30 cod recipes? 

A: Whole30 is a diet that eliminates processed foods, sugar, grains, dairy, and legumes for 30 days. Cod is a great protein option for Whole30, as it is low-carb, gluten-free, and sugar-free. Some Whole30 cod recipes are:

  • Pan-seared cod with lemon caper sauce: This recipe is simple but flavorful, with a buttery sauce made with ghee, lemon juice, and capers. It pairs well with roasted vegetables or cauliflower rice.
  • Gluten-free fish and chips: This recipe is a healthy and crispy version of the classic English dish, with cod coated in almond flour and baked in the oven. It comes with a homemade tartar sauce made with mayo, hot sauce, pickles, and vinegar.
  • One pan Mediterranean cod: This recipe is a 30-minute meal that cooks everything on a single sheet pan. The cod is seasoned with smoked paprika and oregano and baked with cherry tomatoes, olives, and basil.
A Pinterest pin collage featuring a keto, gluten-free Mediterranean cod with walnut crust, served with roasted vegetables.
Keto Mediterranean Cod With Walnut Crust Pin

More Keto Recipes Here

A close-up image of a keto Mediterranean cod with a walnut crust, served with roasted vegetables and walnuts on a white plate.

Keto Mediterranean Cod Recipe With Walnut Crust

Author: Rally Rus
This Keto Mediterranean Cod Recipe With Walnut Crust is so moist and tender, and the walnut crust is crispy and flavorful. It’s a low-carb, gluten-free, and sugar-free meal that you can make in 30 minutes or less.
5 from 1 vote
Net Carbs: 1.5g
Print Recipe Pin Recipe
Prep Time 5 minutes
Cook Time 15 minutes
Total Time 20 minutes
Course Dinner
Cuisine Keto Diet
Servings 2 servings
Calories 329.6 kcal

Equipment

  • 1 Spatula
  • 1 Measuring cups and spoons
  • 1 Pyrex Ribbed Bowls
  • 1 Knife

Ingredients
 
 

  • 8.8 oz cod fillets
  • 2 tablespoons unsalted butter
  • 1/4 cup walnuts
  • 1 teaspoon dried parsley
  • 1 teaspoon dried dill
  • 3 tablespoons parmesan cheese
  • 1/4 teaspoon salt
  • 1/8 teaspoon black pepper
  • 1 teaspoon lemon zest

Instructions
 

  • Preheat your oven to 180°C/360°F and lightly grease a baking dish with some olive oil or cooking spray.
  • Place the walnuts in a small food processor and pulse until they are coarsely chopped. You can also use a knife to chop them by hand, but make sure they are not too fine or too large.
  • Add the butter, parsley, dill, parmesan cheese, salt, pepper, and lemon zest to the food processor and pulse until well combined. You should have a crumbly and moist mixture that sticks together when pressed.
  • Pat the cod fillets dry with some paper towel and place them in a single layer on the prepared baking dish. Spoon the walnut mixture evenly over the top of each fillet, pressing gently to adhere.
  • Bake the cod for 15 to 20 minutes, or until the fish flakes easily with a fork and the crust is golden and crisp. The internal temperature of the fish should reach 63°C/145°F for optimal doneness.
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YouTube Video

Notes

See the FAQ section below for serving suggestions and other helpful information.

Nutrition

Serving: 1servingCalories: 329.6kcalCarbohydrates: 2.7gNet Carbs: 1.5gProtein: 27.4gFat: 23.7gSaturated Fat: 9.5gSodium: 626.7mgPotassium: 609.5mgFiber: 1.2gSugar: 0.5gVitamin A: 492IUVitamin C: 3mgCalcium: 137.6mgIron: 1.2mg
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