Japanese Sushi Rolls

Name: Japanese Sushi Rolls
Prep time: 20 min
Cook time: 20 min
Total time: 40 min
Cuisine: Japanese
Ingredients: 2 cups sushi rice; 1 tbsp caster sugar; 2 large green onions (finely chopped); 30 g cucumber (seeded and finely chopped); 110 g smoked salmon; 2 tsp wasabi paste; 4 sheets sushi nori (10 g in total); pickled ginger (to garnish); salt-reduced soy sauce (to serve)