what is it?

Today at the Asian market I picked up an interesting package of food. There are 3 logs that look like mochi or fish paste rolled out flat (about 1/8 inch thick), sprinkled with slivers of green onion and tiny dried shrimp and then rolled up into thin logs. They were in the refrigerated section on a white styrofoam tray with saran wrap over them - no label of any kind. They were only $2.49 and when I asked the cashier what they were she had no idea. I bought them anyway because they looked fun! They are very smooth and white. When you press them they feel very firm. Do you have any idea what they might be ... and then of course, the best way to eat them? Thanks! :D