Eating in Poland is significantly cheaper than in Spain, but in the center of Krakow you many restaurants and some are quite posh. So if you want something cheaper (and still great), it's better to walk a little in the direction of Kazimierz, but without crossing the yard. It was there that I found this place with a grill bar upstairs and a pub downstairs. There are only 5 tables, but below is much bigger and you can also eat there. I had sausage and wow! Huge and very good! potatoes, salad ... I remember it was around € 5 and really filled me up!