REWE

Big supermarket in the middle of the city. I went here a few times when I was staying in a hotel nearby. The prices are good, the staff was friendly and they even take American Express.

Nice place for grocery just at the main station.

Normal food shops with a lot of selections. They have make it yourself canteen, you can create your own lunch. Already packed choices of food, different types of sushi.

Just incase you can't find it! Its actually underneath the building, accessible from the staircase next to the street

Average but they don't have that many options like others rewe city. They offer some sushi options from "eat happy sushi".