Best Fish Tacos Recipe (Keto, Low Carb)

Want the best fish tacos recipe to enjoy on a keto low carb eating plan? These healthy healthy fried fish tacos are quick and easy!

The best keto paleo fish tacos recipe

Love fried breaded fish served in tortillas? There’s no need to miss out! Even though tacos are often high in carbohydrates, they can easily be made keto friendly.  And once you give them a try, they are sure to become one of your favorite low carb Mexican recipes!

The flaky fish, with a crispy outside, makes the perfect base for the delightful tacos.  I literally don’t remember a time that these didn’t hit the spot when craving a yummy taco.

There is just something so tasty about fish tacos, easily making them one of my favorite taco recipes.  I will warn you though that these are delicious and you might have to keep yourself from going back for seconds and thirds.

Ingredients needed for my best fish tacos recipe

Ingredients for making keto paleo fish tacos

To make these amazing fried fish tacos, you’ll need to have the following ingredients on hand:

  • cod fillets, diced
  • whey protein powder
  • baking powder
  • garlic salt
  • chili powder
  • cayenne pepper (for a little extra kick)
  • eggs

How to make easy fish tacos

Dry mix for keto fish tacos

The whey protein, baking powder, salt, chili powder, and cayenne pepper (if using) are whisked together in a medium sized bowl for the low carb breading. In another bowl, the eggs are beaten.

Next, the cod is diced into bite-sized pieces. Then it’s dipped into the dry mixture followed by a quick dip into the beaten eggs. Finally, it’s dipped back into the dry mixture. The process is then repeated until all the fish pieces are well coated.

Frying the fish for paleo tacos

A large skillet is used to fry each piece in hot oil about 1/4 to 1/2 deep. It takes about 3-5 minutes to cook each side of the fish to a golden brown color. When fully cooked, the fish should flake easily.

If you’d prefer, an air-fryer could by used to reduce the amount of oil and make less mess. The fish could probably be baked in the oven as well.

I’d suggest cooking at 350°F in the air fryer for 10-12 minutes and flipping half-way or giving a little shake. In the oven, I’d try either 375°F or 400°F for about ten minutes or until browned.

Fried breaded fish for keto tacos

How to serve fish tacos

The fried breaded fish are best served with homemade keto-friendly gluten-free tortillas along with Pico de Gallo and a few lime slices. Or try serving them with some cucumber salsa which has less fruit sugar than those made with only tomato. The taco mayo sauce I use for serving burnt broccoli is another great option!

If you don’t have any low carb tortillas made, that’s perfectly okay. The recipe can be made served without the tortillas and enjoyed as a paleo fish taco bowl. Or, just enjoy them as fish lettuce wraps.

These cod fish tacos are great as a lighter lunch or you can add sides to it for a full dinner. And they are so delicious that even your non-keto friends and family will love the recipe.

Top view of the breaded fish in the low carb tortillas

What fish is best for fish tacos

Here’s some fish that could be used for these keto fish tacos:

  • Cod
  • Flounder
  • Trout
  • Salmon
  • Catfish
  • Tilapia
  • Tuna

Other low carb taco recipes

Here’s a few of my other low carb taco recipes that you may enjoy:

Fish tacos in low carb tortillas

Kitchen Tools Used

To make these delicious low carb fish tacos, you’ll need the following:

Best Fish Tacos (Keto, Low Carb)

Want a healthy fish tacos recipe to enjoy on a keto low carb eating plan? These fried fish tacos make a quick and easy lunch or dinner!

Keyword cod fish tacos, fish tacos, fried fish tacos


  • ½ lb cod
  • ½ c whey protein
  • 1 tsp baking powder
  • 1 tsp garlic salt
  • 1 tsp chili powder
  • ¼ tsp cayenne pepper optional
  • 2 eggs
  • Lettuce Lime & Pico for serving


  • In a medium size bowl, whisk together whey protein, baking powder, salt, chili powder and cayenne pepper if using.

  • In another medium size bowl whisk eggs.

  • Cut cod into bite sized pieces.

  • Dip cod into dry mixture followed by the egg and back into the dry mixture, coating all sides. Repeat until all cod has been coated.

  • Over medium high heat, heat up ¼”-½” of oil.

  • Carefully place cod and allow to cook 3-5 minutes per side. If fish is cut thicker, allow time to cook accordingly.

  • You are looking for the coating to become a golden brown color.

  • Remove from skillet and place on paper towel.

  • Add in next batch of cod until all has been cooked.

  • Serve with lettuce or salad mixture, pico and squeeze of lime juice.


  • Don’t forget the limes!
  • Make sure your skillet is hot before cooking the fish to ensure a nice, crisp finish.


Nutrition Facts

Best Fish Tacos (Keto, Low Carb)

Amount Per Serving

Calories 134
Calories from Fat 36

% Daily Value*

Total Fat 4g

Saturated Fat 0g

Cholesterol 108mg

Sodium 698mg

Potassium 550mg

Total Carbohydrates 3g

Dietary Fiber 1g

Sugars 0g

Protein 18g

Vitamin A

Vitamin C



* Percent Daily Values are based on a 2000 calorie diet.

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Note on Nutritional Information

Nutritional information for the recipe is provided as a courtesy and is approximate only. We cannot guarantee the accuracy of the nutritional information given for any recipe on this site. Erythritol carbs are not included in carb counts as it has been shown not to impact blood sugar. Net carbs are the total carbs minus fiber.

Unauthorized use and/or duplication of this material without express and written permission from this site’s owner, Lisa MarcAurele, is strictly prohibited.
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