Low Carb Keto Fish Tacos

We have been having Taco Tuesday at our house practically religiously each week since my sons were toddlers. It’s a tradition that we look forward to – and we now will usually mix it up with the protein and condiments after a LONG run of turkey tacos for years and years We experiment with keto fish tacos, keto steak and carnitas tacos.

One of our favorites are keto fish tacos using flounder or sole – sometimes on Sundays at our Farmer’s Market I can pick up some super fresh Golden Sole which is our favorite fish taco protein. When choosing fish – whether on keto or not – you ideally want to get high quality that’s sustainably caught. I like to refer to Seafood Watch’s list which can be filtered by state so you know what to avoid when at home or traveling. Why does it matter if your fish is sustainably raised or caught? Not only can they be deficient in the nutrients, you want to pass on those on the “Avoid” list because they’re overfished and are treated in ways that can harm the environment.

I’ve experimented with low carb tortillas and finally perfected a recipe which you’ll find here, however after frying the fish, I actually prefer mine wrapped in lettuce – either romaine or butter lettuce. We go crazy with the toppings – cheese, guacamole or fresh avocado, cilantro and onion, hot sauces, fresh diced tomato and more.

Low Carb Fish Tacos

I usually make my keto fish tacos using flounder or sole - sometimes on Sundays at our Farmer's Market I can pick up some super fresh Golden Sole which is our favorite low carb fish taco protein. You want to use a mild fish - and preferably not a heavy fish like salmon - so the flavors of the batter and toppings really come thru. I use coconut flour which is low carb and keto friend works perfectly for a light, crisp batter.
5 from 1 vote
Prep Time 15 minutes
Cook Time 10 minutes
Course dinner
Cuisine Mexican
Servings 4
Calories 273 kcal

Ingredients
  

  • 1 medium tomato seeded and finely chopped
  • 1/2 small red onion peeled and finely chopped
  • 1 clove garlic minced
  • 1/2 cup roughly chopped cilantro
  • 1 jalapeno pepper halved lengthwise, seeded and cut crosswise into half moons (optional)
  • 1/4 cup greek yogurt
  • 2 limes 1 halved and 1 cut into wedges
  • Kosher salt
  • Freshly ground black pepper
  • 1 tablespoon canned chipotle pepper finely chopped (optional)
  • 1/2 cup coconut flour
  • 1 1/2 teaspoons chili powder
  • 1/2 cup heavy cream
  • 1/4 cup avocado or coconut oil plus a splash more for greasing pan
  • Pat of butter
  • 1 pound flounder or any firm white-fleshed fish cut across the grain of the flesh into strips about 1/2 inch wide by 3 inches long
  • 12 whole lettuce leaves - preferably romaine or butter
  • 2 cups shredded green cabbage
  • A saucy hot sauce like Tapatio or Frank?s

Instructions
 

  • In a medium bowl, combine the tomatoes, onion, garlic, cilantro and jalapeno (if using).
  • In a small bowl, whisk the greek yogurt with the halved lime, salt, pepper and chipotle (if using).
  • In a medium bowl, mix together the coconut flour, chili powder and 1 1/2 teaspoons each of kosher salt and black pepper. Pour the heavy cream into another medium bowl, and place the fish into it.
  • Pour 1/4 cup of the oil into a 12-inch frying pan and place over medium-high heat until it is about to smoke. Remove the fish pieces from the heavy cream bath and dredge them lightly through the flour mixture, shaking to remove excess. Add the butter to the pan. Place some fish pieces in the oil, without crowding them, and cook until deep golden brown on one side, 3 to 4 minutes. Turn carefully and cook for 1 minute more. Remove to a warmed, paper-towel-lined plate and sprinkle with salt.
  • Repeat with the remaining fish.
  • Fill each lettuce leaf with 3 pieces of fish, browned side up, followed by tomato salsa and a pinch of cabbage.
  • Drizzle with the cream sauce. Serve 2 to 3 tacos per person, with lime wedges and hot sauce on the side.

Nutrition

Calories: 273kcalCarbohydrates: 16gProtein: 19gFat: 15gSaturated Fat: 10gPolyunsaturated Fat: 1gMonounsaturated Fat: 3gTrans Fat: 0.01gCholesterol: 85mgSodium: 150mgPotassium: 302mgFiber: 7gSugar: 4gVitamin A: 728IUVitamin C: 13mgCalcium: 76mgIron: 1mg
Tried this recipe?Let us know how it was!
Lolita Carrico
Lolita Carrico
Exploring the art of graceful aging, I share my journey and tips on wellness, beauty, and nutrition for women embracing their vibrant 40s and beyond.

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