I'm not typically a fan of food that takes too much work to eat. Lobster, for instance. Rarely worth all that cracking. But assembling the banh hoi at Le Cheval is fun. And the result is delicious. Soak the dry rice paper in hot water to soften it up, then build a roll with meat, basil, cucumber, carrots, basil, sprouts, and plenty of nuoc mam sauce. You'll probably make a bit of a mess, but it'll be worth it.