I made the very simple type with several regular fillings: egg, green vegetable, sausage, and carrot.
1, Beat 2 eggs in a bowl, add in 1 pinch salt, Stir well. Brush pan with oil. Heat it. Add in egg mixture and stir the pan to make a thin plat disk. Flip over when the down side solidifies. and fry for a little while. Cut the egg disk into strips.
2, Boil sausage in water till cooked. And cut into strips.
3, Blanch green veggies in water.
4, Stir fry carrot strips till a bit soft.
5, Put cooked rice in a big bowl, season with a little salt and sesame oil.
6, Put bamboo sheet at the bottom layer. Then dried seaweed over it. Rice on the bottom, and arrange egg, carrot, green vegetables and carrot, sausage over rice. Remember to leave 1/4 space of seaweed blank with no rice.
7, Roll it and squeeze hard at the same time till roll to the end.
8, Cut the roll into slices.
Serve with sauce you like.