Oddly, cooking onions and zucchini this evening resulted in fishy smelling zucchini that we threw out. I've tried searching to see if anybody else has had this problem, but only found 2 posts of people making zucchini bread or zucchini muffins with a fish odor. I tasted the zucchini before cooking it and it tasted fine. It was organic and dark green. If anybody else has experienced this and has any idea why, it would be great to hear from you. I cook zucchini often and have never had this problem before.