Jolly Green Giant Roll

Cook sushi rice as instructed. Slice avocado into thin slices. The green beans don't have to be cut, but you can do so if you wish.
Stir 1/2 tablespoon rice vinegar into prepared sushi rice. Shape into a ball, then spread over nori. Lay avocado slices and green beans in a row. Roll and seal by dipping fingers in water/rice vinegar combo and pressing closed; dampen entire roll for easier cutting. Slice, and enjoy.