Photo by Nikki Buchanan    We’ve all noticed the increase in pop-ups and ghost kitchens since COVID-19 put a kink in day-to-day restaurant operations, but here’s a trend that seems to be thriving within the confines of the new normal: the commissary kitchen, cloud kitchen, virtual kitchen, shared-use commercial kitchen… there are a half dozen names for basically the same thing. Shared-use kitchens aren’t a new phenomenon, of course. Caterers and other small food...