See also Sushi Express Seaweed Rolls
2 1/2 cups [625 mL] medium or short-grain rice.
2 1/2 cups [625 mL] cold water.
Finely chopped unpeeled cucumber, to taste [optional].
Finely chopped cleaned fresh mushrooms, to taste [optional].
1/2 cup [125 mL] really fresh raw fine strips fish fillet such as tuna, sea bream and salmon [any bone carefully removed].
Small boiled shelled and deveined shrimps or 1/2 cup [125 mL] cooked crabmeat pieces.
Seaweed sheets and Salt.