Drain off the water from the tuna, then place it in a large mixing bowl with the salt, black pepper, onion, celery, and cilantro.
Mix all the ingredients until well combined.
Mix in the mayonnaise, tomatoes, and jalapeños and stir until combined.
Taste it and adjust the season to your liking. Once everything is combined, it’s ready to serve with chips, saltine crackers, or tostadas.
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