This simple and refreshing recipe makes the perfect side dish or appetizer for family gatherings and informal parties.
Wash lettuce, cut into 3" pieces, dry and refrigerate. Shred crab, dice cucumber and avocado into bite-size cubes. Heat all the sauce ingredients (shoyu, sesame seeds, rice vinegar, mirin, sugar, sesame oil, wasabi) together just until boiling, then set aside to cool. Cook somen according to package directions. Assemble by placing some somen on each lettuce leaf, followed by crab, avocado, cucumber, nori and green onions and a sprinkle of some sesame seeds.
Serve with dipping sauce on the side.