In a large deli container, add the mayo, cream cheese, avocado, and soy sauce. Stir together until smooth, and no avocado lumps remain.
Using a mandolin or sharp knife, slice the cucumber into ⅛ inch thick slices.
Add the sliced cucumber, imitation crab, and sesame seeds to the deli container.
Put on the lid and shake until all ingredients are evenly coated. Eat immediately, either directly from the jar or serve in a bowl and top with additional sesame seeds to garnish.
