Gather your ingredients: tomatoes, onion, jalapeño, cilantro, lime juice, and salt.
Chop the tomatoes, onion, and jalapeño into small pieces.
Finely chop the cilantro.
Combine all ingredients in a bowl and mix well.
Add salt to taste.
Refrigerate for at least 30 minutes to allow flavors to meld.
Serve with tacos, burritos, or chips and enjoy!