FRS Asheville’s Whacked brings together local chefs, school food service directors and Green Opportunities Kitchen Ready trainees for an off-the-wall culinary contest; fermentation revivalist Sandor Katz offers food preservation workshops at Rhubarb and the Asheville Food Park; chef Katie Button’s new cookbook is already topping online lists; chef Eric Scheffer hosts an Argentinian feast at Hickory Nut Gap Farm and Asheville gets a new restaurant ordering website.