This is pretty much the recipe I use:
I use more fresh garlic, pickled jalapeno (and less than called for due to wimp factor of family)and more cilantro, which I add closer to serving time. In my opinion, it really doesn't hold very well, so if I have leftovers, I usually will put it in a batch of soup or chili.
From the Homesick Texan blog:
Pico de gallo is a versatile condiment. You can use it on top of anything—chips, fish tacos, scrambled eggs—but I often eat it as a simple summer salad, too. Because I want the tomatoes to dominate my pico, I finely mince my peppers, onions and garlic so they aren’t fighting for attention in my mouth. And while it may be a bit untraditional, I add a smidge of olive oil to bring all the flavors together.
Pico de gallo
2 cups ripe red tomatoes diced (about 4 medium tomatoes)
1 tablespoon minced garlic (1 clove)
1/4 cup diced onion (about 1/4 of a small white onion)
1/4 cup chopped cilantro
2 jalapenos (stems and seeds removed) diced
2 limes, juiced (2 tablespoons)
1/2 tablespoon olive oil
Salt to taste
Method:
1. Mix all the ingredients and let it sit for half an hour.
2. Serve immediately.
Will last a day in the refrigerator, though it may get extra juicy. You can drain some of the juice if you like.
Makes 2 cups
http://homesicktexan.blogspot.com/2008/08/august-is-time-for-pico-de-gallo.html