lunch at Kleine Anna (Little Anna)

One would except that in a city like Frankfurt and the office being near to one of the busiest areas, it wouldn't be a big problem deciding on where to go for lunch. We have pretty much tried and tested a lot of restaurants, even have picked favourite ones. Only that after 3 years of working at the same place, going to the same favourite restaurants, it gets a little boring and lengthly discussions start about where to go already way ahead of lunch time :)