This easy Summer recipe is perfect for lunch or a light dinner when you want something quick, inexpensive and nutritious (and it’s great in any season). Ensalada de Atun is a common occurrence on the Mexican table, but the purists tell you it must be eaten with saltines (and I tend to agree)!

Jump to: RECIPE | Classic Ingredients | Modify to Low Carb
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What Makes this Tuna Salad a Mexican Dish?
Ensalada de atúnis is a classic dish across Mexico and usually involves canned tuna tossed with something creamy (like mayonnaise), crisp lettuce, something spicy, and some fresh lime juice. Vegetables are also typical, but the exact type of vegetable varies.
The fresh lime juice and the spicy peppers are must-have ingredients, however, and the Mexican version is most often served with saltines.
While pickled jalapeños are common as the spicy ingredient, my friend from the Bajío region of Mexico made the recipe below, and she insisted on fresh serrano peppers.

Another popular tuna salad is the French Nicoise Salad (Salade Niçoise). It also includes tuna and vegetables, but it does not typically mix everything with a creamy dressing. In addition, the French version almost always includes green beans and hard-boiled eggs.

The classic American version of a tuna salad, to me, is canned tuna with mayonnaise and pickles. My mom would often add celery for the crunch and sometimes she would add some chopped hard-boiled eggs. Never lime juice or spice, however! Those are reserved for the Ensalada de Atun.
Classic Ingredients of a Mexican Tuna Salad
Every Mexican household adds their own touch of course, but the recipe below is from my friend from the Bajío region of Mexico. She was very specific (and adamant) on the ingredients that were needed.
The quantities of each ingredient in her ensalada were not standardized, however. Many Mexican recipes I’ve seen include pickled jalapenos, but she made quite a face when I recommended this. The spice in her recipe comes from fresh serranos.

Other ingredients might include:
- Fresh tomatoes
- Fresh serrano peppers
- Canned corn
- Fresh cucumbers
- Mayonnaise
- Purple onions
- Fresh limes
- Cilantro
- Romaine or crisp lettuce
- Served with saltines
Modifying to Low-Carb
There are two ingredients in this recipe that are not compliant with a low-carb diet: the corn and the saltines. It is a simple matter to leave the corn out of the salad and skip the saltines.
Some will consider it blasphemy, however, to not serve this salad with the classic saltines, but if you are strict on your low-carb lifestyle, crackers are not allowed. I would add some celery to the salad to give it a little more crunch.
See this post to learn more about the similarities and differences between Low Carb, Slow Carb, and Keto diets.
How Long Will It Keep?
This Tuna Salad will last about 3 days in the refrigerator once placed in an airtight container. The lettuce might get a little soggy however, so I would crisp it up with some fresh lettuce when serving the leftovers (especially if you are foregoing the saltines).
Mexican Tuna Salad
Equipment
- large mixing bowl
Ingredients
- 4 roma tomatoes (or meaty slicer tomatoes) coarsely chopped
- 8 serrano peppers chopped
- 1 red onion finely chopped
- 2 large cucumbers coarsely chopped
- 1 head romaine lettuce coarsely chopped
- 28 ounces canned tuna (water packed) drained
- 14 ounces canned corn delete if low carb
- 1 cup mayonnaise may need to add more at the end
- 1 bunch cilantro finely chopped
- 3 limes cut into wedges for individual use
- 1-3 teaspoons salt to your own taste
Instructions
- Chop all the vegetables that are fresh and set aside.4 roma tomatoes (or meaty slicer tomatoes), 1 red onion, 2 large cucumbers, 1 head romaine lettuce, 8 serrano peppers
- In a large bowl, add the tuna, the corn, and the mayonnaise. Gently mix all together until combined.14 ounces canned corn, 1 cup mayonnaise, 28 ounces canned tuna (water packed)
- Add the reserved tomatoes, peppers, onion, cucumbers and lettuce, mixing each one in as you go. Add salt and cilantro to taste and stir in. All ingredients should be thoroughly mixed together by now.1 bunch cilantro, 1-3 teaspoons salt
- Serve with lime wedges and saltine crackers (optional).3 limes
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