These Keto Fish Tacos with blackened salmon and a quick cucumber avocado salsa are healthy, satisfying, and packed with healthy fats!

We love a good taco, c’mon who doesn’t? These Keto Fish Tacos are beyond good. We don’t want to toot our own horn, but these are seriously among the top 5 best fish tacos we’ve ever eaten, and we’ve eaten a lot of tacos. The seasoning of the fish and the salsa, THE SALSA, really are what take this taco recipe from ordinary to extraordinary.
We wanted to share this recipe with you guys without adding to the carb count so we served it on a bed of butter lettuce, however, if you want to make this a more traditional taco, check out this keto tortilla recipe (only 2 net carbs) and ready in 15 minutes!
Ingredients in Keto Fish Tacos
- 10 ounces salmon
- 1 tablespoon avocado oil
- 1 tablespoon blackening spices, sugar free
- 8 butter lettuce leaves
Salsa:
- 1 avocado diced
- ½ cup diced cucumber
- 1 jalapeño minced
- ¼ cup diced red onion
- 2 tablespoons minced cilantro
- 2 tablespoon lime juice
Spicy Mayo:
- 2 tablespoons mayonnaise
- 1 tablespoon lime juice
- 1 teaspoon chili powder
Step-by-step cooking instructions
- Rub the salmon with the spices. Heat the oil in a 10.5″ cast iron skillet over medium high heat,once hot ,add the salmon to the pan skin side down. Sear about 5 minutes until the fish easily releases from the bottom of the skillet and the skin is crispy, flip and continue to cook another 3-4 minutes for a medium cook. Remove and slice into 2″ cubes.
- In a medium bowl mix together all of the ingredients for the salsa. Season with salt to taste. For the sauce, mix the ingredients together in a small bowl or jar.
- To make the tacos place two butter lettuce leaves together then fill with salmon and salsa.
Tortilla options for keto tacos
We wanted to share this recipe with you guys without adding to the carb count so we served it on a bed of butter lettuce, however, if you want to make this a more traditional taco, check out this keto tortilla recipe (only 2 net carbs) and ready in 15 minutes!
Sides to serve with tacos
OK, we hope you love our Keto Fish Tacos! If you give them a try, leave a comment below! 🐟 🌮


Keto Fish Tacos
Ingredients
- 10 ounces salmon
- 1 tablespoon avocado oil
- 1 tablespoon blackening spices sugar free
- 8 butter lettuce leaves
Salsa:
- 1 avocado diced
- ½ cup diced cucumber
- 1 jalapeño minced
- ¼ cup diced red onion
- 2 tablespoons minced cilantro
- 2 tablespoon lime juice
Spicy Mayo:
- 2 tablespoons mayonnaise
- 1 tablespoon lime juice
- 1 teaspoon chili powder
Instructions
- Rub the salmon with the spices. Heat the oil in a 10.5″ cast iron skillet over medium high heat,once hot ,add the salmon to the pan skin side down. Sear about 5 minutes until the fish easily releases from the bottom of the skillet and the skin is crispy, flip and continue to cook another 3-4 minutes for a medium cook. Remove and slice into 2″ cubes.
- In a medium bowl mix together all of the ingredients for the salsa. Season with salt to taste. For the sauce, mix the ingredients together in a small bowl or jar.
- To make the tacos place two butter lettuce leaves together then fill with salmon and salsa.
Kerry says
What are blackening spices?
Alex Lester says
This is what we use -> https://amzn.to/3SAKdrb
Rhonda says
I made this tonight and was absolutely delicious! Thanks so much!
Susie says
You gotta try K-38 Taco stand in Baja California. It’s about 45 min south of the border (San Diego/Tijuana)
The best! Say hi to Roberto and the familia if you get there