It will depend on where you live. In the North, not all chains will carry that produce, but you can always ask the store manager to carry it, and many will. It is one of the best root vegetables I've ever eaten. All I know to do with it is serve it raw and in a salad. If there are other ways, I'd like to hear about them.
AKafighter, I just noticed Blackheart is back with us. Remember her? She's posting right now.
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Other people asked questions on various topics, and are still waiting for answer. Would be great if you can take a sec and answer them