Any suggestions for a quality (prefer German cuisine as an option at least) within a 15 minute walk of the Hauptbahnhof in Dusseldorf that would be priced not much over 20 Euros a person that would be open on a Sunday evening? I will be with a group of 8.
I have been doing a bunch of online research, but keep finding food from other countries or too high priced options. I have the Rick Steves' 2013 Germany book at home in the US, but didn't bring it because I didn't know I would have to plan some of these small details. I wish I had it with me, I bet it has some good ideas!