Green-Tomato Salsa

This was an excellent use for an abundant - but slow ripening - tomato garden! I took it to a picnic, with rave reviews. It's easy to make, readily found ingredients, and presents quite nicely. My only complaint is that it's hard to find fresh, ripe avocados at the same time as most of us have a lot of green tomatoes in the garden (the fruit has different seasons). I prefer farmer's markets or our own grown produce, if possible. Still, most grocers will have the ingredients to supplement your home-grown green tomatoes if you try this anywhere!