Due to its low level of fat, tuna might not be the most popular choice of fish if you follow the keto diet. 

But if we combine it with mayonnaise it's definitely keto-approved — especially if you make your own mayo!

For this recipe though, I simply used Hellman's. Sometimes there's just not time enough to make everything from the ground up. Which is the beauty of this recipe: it's super fast to make.

And it tastes great! Put it on your favorite keto bread, like oopsies or a seed crispbread, or enjoy it with a boiled egg and a green salad.

Another benefit is that it is perfect for the lunch box. 😀

Keto crispbread


Canned tuna in water 300 g 10 oz
Mayonnaise 1 dl 0.5 cup
One minced red onion half 30-40 g 1 oz
Diced pickled cucumber 1 dl 0.5 cup
Paprika powder 5 ml / 1 tsk 1 tsp
Cumin powder 5 ml / 1 tsk 1 tsp
Ancho chili powder 5 ml / 1 tsk 1 tsp
Garlic powder 5 ml / 1 tsk 1 tsp
A few dashes of tabasco
Salt and ground black pepper


10 minutes of prep time and 2 hours of idle time

  1. Put the tuna meat in a colander to drain.
  2. Mince the onion and dice the cucumber.
  3. Combine the above in a mixing bowl and add the mayonnaise.
  4. Add the  seasonings and Tabasco
  5. Stir well and let it sit in the refrigerator for two hours.
  6. Enjoy!


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