Marvel's Beef and Scallion Rolls (Negimaki)
Buy veal cut for scallopini or beef cut for braciole. The pieces should be about 3x6-inch rectangles.
Roll the long way; this will help keep the roll together. They can also be tied with chives or string (remove string before the last coating stage).
Dashi comes in dry powder form and is the base for miso soup, which is great with these.