1 Peel and cut the sweet potato into thin rounds.
2 Season the sea bream fillets and place a piece of ginger on the fish, flesh side up.
3 Roll the fillet starting with the tail.
4 Hold the roll in place using a skewer.
5 Place the sweet potato rounds in the steamer and add the sea bream rolls.
6 Steam for 10 minutes with the lid closed.
Tip: To add even more flavor, you can add ginger to the steaming water