Put tuna and potatoes or pumpkin in a bowl, and it should be mashed together to be the base in the roll.
Lay a piece of seaweed on your wrapped wood.
Put 1/3 tuna base to cover half of the seaweed.
Put shredded cucumber, carrot, preserved radish and avocado on the base to be the fillings for the roll.
Wrapped them to a roll.
Cut it to 8/10 small pieces each roll.
Feel free to add the seafood sauces.