A word of warning about sushi: You can't be too careful about where you get it.
The cafeteria at my office offers sushi once a week. People from a local sushi restaurant come in and set up a station. I had their sushi for lunch a few times... it was decent. I figured it was more likely to be safe because it came from a sushi restaurant and, presumably, was prepared by a properly trained sushi chef.
Then, one day, one of my coworkers got very sick after eating their sushi.
I found out later that this restaurant supplies sushi to a few different area companies, and whatever doesn't sell at Company X on Monday, they bring to Company Y on Tuesday.
Needless to say, I don't get sushi at the cafeteria any more, nor will I ever go to that restaurant!!