Over the past 25 years, celebrity caterer, bestselling cookbook author and food stylist Peter Callahan has upped the ante on traditional wedding catering and has single-handedly reconfigured the food and beverage world in the process. No one had the idea to shrink down mini burgers to bite-sized portions before Peter did, and certainly, we’ve all fallen in love with his mini comfort food styling ever since. Right down to the last mini Patron Margarita and fish taco. But there …