Cook the banh hoi. Boil a pot of water. Turn off heat and remove from element. Add in banh hoi sheets. Cover with a lid and let cook for 2 minutes. Remove with slotted spoon onto a paper towel or colander to drain. Handle carefully to avoid tearing as they are delicate. Roll each sheet up and set aside.
Wash and cut your favourite vegetables. Clean the lettuce and mint. Slice mini cucumbers on a diagonal. Pickle some carrots and daikon (instructions here). Make fish sauce. Mix together water, sugar, fish sauce, vinegar and freshly squeezed lime juice.
Assemble the board. Here's the fun part. There is no right or wrong way to assemble. Just have fun! Layer on the vegetables first. Put the bowl of fish sauce on the board. Arrange banh hoi rolls and meat on top of the greens. Assemble each bite to your liking! I lay down lettuce, banh hoi, mint, cucumbers, pickled vegetables, then meat and roll. Dip in fish sauce before eating.