- 1 pound sushi-grade yellowfin tuna
- 1 English cucumber
- 1/2 cup black sesame seeds
- 1/2 cup tan sesame seeds
- Soy sauce (optional)
Slice tuna into 1/2-inch cubes. Slice cucumber into rounds; top each with a small dollop of wasabi. Combine black and tan sesame seeds in a bowl; cover sides of each tuna cube. Place tuna atop each cucumber round; add a drop of soy sauce, if desired.