I am preparing for tonight's dinner, and noticed that my well-meaning, but not detail-oriented fiance purchased Chestnuts packed in water instead of water chestnuts. The supermarkets are crazy right now (everyone is bracing for the hurricane), so I need to find a substitute I have on hand. I have carrots,celery, chestnuts (ha!), mushrooms (which are already in the recipe- I could maybe add more). I have seen suggestions to use jicama but I do not have any. Any other ideas?