It's delicious made with lotus root and carrot too. See.
Here I've used some kinpira that I usually have stocked. If you don't want oil in your sushi, simmer the vegetables rather than stir frying.

Step 1: Use a bit less than 2 tablespoons of sushi vinegar to every 1 rice cooker cup worth of rice.
Step 4: You can freeze any leftover shredded omelette.
Step 6: The number of servings will depend on the size of the containers you use.
Note: If you allot 1/2 rice cooker cup worth of rice per serving, you'll need 2 rice cooker cups worth of rice in total for 4 servings.
Step 6: If you are making this for a bento, use plastic containers to mold into shape. Recipe by Yuuyuu0221