The serving size really depends on how much you want to fill it— some people go heavier on the rice, others on the fillings. When using 250g (uncooked) sushi rice, it typically serves around 4 people, making about 12 hand rolls (3 rolls each). If you plan to have more than 3 each, adjust the serving size.
Keywords handroll sushi, homemade sushi, quick and easy sushi, salmon and mango, salmon sushi