Very quick and easy -- since I've lived in Japan I make this almost daily.
Make and share this Kappa Maki (Cucumber Sushi) recipe from Food.com.
- Lay sheet of nori on bamboo mat.
- Cover nori with layer of sushi rice, spreading rice about 1/8-1/4 inch thick.
- Lay long strips of cucumber on center of rice.
- Roll into long sushi roll using the bamboo mat to aid (it takes a little getting used to, but it's fairly easy).
- Cut roll into smaller pieces using sharp knife -- serve with soy sauce.