Tuna & green bean sushi

Method

• 1
  Combine rice and water in a saucepan. Cover. Bring to boil over high heat. Reduce heat to very low. Cook, covered, for 15 minutes or until water is absorbed. Set aside for 5 minutes to cool slightly.
• 2
  Transfer the rice to a bowl. Place the vinegar, sugar and salt in a bowl and stir until the sugar dissolves. Add to the rice and stir to combine. Set aside, stirring occasionally, to cool completely.
• 3
  Combine the tuna, mayonnaise and wasabi, if desired, in a bowl.
• 4
  Place 1 nori sheet, shiny-side down, on a clean work surface, with 1 long side facing you. Use wet hands to spread one-quarter of rice mixture over the bottom two-thirds of nori sheet, leaving a border around edge. Spread 2 tablespoons of tuna mixture along centre of rice. Top with one-quarter of beans. Roll up to enclose. Repeat with remaining nori, rice mixture, tuna mixture and beans.
• 5
  Wrap each roll in plastic wrap. Place in fridge for 30 minutes to chill. Cut each roll in half. Serve with soy sauce for dipping.