Copenhagen is one of those cities where you can eat exceptionally well at every level, from a three-Michelin-starred tasting menu to Scandinavian takes on the taquería, gas station burger and hot dog stand. Bakeries and casual spots serving simple dishes are just as strong as the headliner restaurants. But what struck me the most on my latest trip to the Danish capital was the level of passion I experienced. Every chef, barista, cheese shop owner and server that I met seemed genuinely excited to...