Place the tomato halves on a cutting board and slice into quarters.
Working over a mixing bowl, squeeze each piece in your hands to remove the seeds. Discard the seeds, then chop into 1/2-inch chunks.
Place the tomato pieces in a serving bowl and sprinkle with the salt. Add the remaining ingredients and mix well with a fork or spoon.
Let rest for at least 30 minutes before servingóthis will allow the flavors to blend.
Yield: about 1 cup