I made this simple salsa recipe this morning and it tastes pretty good. I used an heirloom tomato, "Cherokee purple". I think that variety is one of the best tasting tomatoes that I have grown.
1-2 tomatoes
1 small onion
Handful of fresh cilantro
1 clove garlic or garlic powder
2 Tablespoons lime juice
¼ tsp chili pepper or some of canned jalapeños from above.
Pulse everything in a food processor for 30 seconds. Enjoy. (You can do this by chopping with a knife as well.
http://www.nwkidney.org/services/nutrition/healthyeating/saltfree.html