Download In Your Pocket - it will explain all on p.44
You will not need to walk for more than 5 mins to food
http://www.inyourpocket.com/data/download/krakow.pdf
I would avoid this one though - its overpriced and the food is terrible
5) Wierzynek. Well this is the oldest restaurant in Krakow, it's something like 700 years old. The food isn't so fantastic, but it is an institution. George Bush snr and François Mitterand have both eaten there. I remember eating there when the Communists were still running Poland, it was basically an aspect of divide and rule.