Finely dice onion into ¼" cubes, and set aside.
Coarsely chop zucchini into 1” Cubes, separate them into three batches. Place each batchinto a food processor and pulse for about three seconds, two-three times, untilthe zucchini pieces are roughly ¼” in size. Repeat this step for each batch.
After all of the zucchini has been pulsed, take a cheese cloth, and squeeze as muchof the water out of the zucchini chunks, until almost all of the liquid has drained out. This will take about 3-5 minutes.
Combine all of the ingredients into a large bowl, except the oil. Gently stir untileverything looks evenly mixed.