Drain tomatoes rather well over a sieve. You don't want your salsa to be too watery. In the meantime, place garlic, onion and jalapeno in a food processor. Process for 30 seconds or until finely chopped (not too fine).Add drained tomatoes and pulse for an additional 30 seconds or so until nicely chopped.Add salt and pepper to taste. Add lime juice. If it doesn't taste right adding more lime juice will usually do the trick. Sometimes, I add a splash of olive oil to blend the ingredients together.