I was previously surprised by the vegetarian sushi menu introduced by Kinsahi, then I found another japanese restaurant that provide quite a variety of vegetarian choices - Ichiban Boshi in Pavilion KL.
Besides the usual Egg Mayo, Inari, Cucumber/Radish Maki and corn Sushi, Ichiban Boshi has something more interesting.
Vegetables Roll (Maki).
Vegetables Handroll (Temaki).
Forgotten the name, something with Inari and pickled radish.
The thing I like about them is that these are not vegetarian as in they are 'fake' seafood/meat, but they are all vegetables - fresh and colorful vegetables, to be eaten in a creative way.
Another plus point is, the price here is like Sushi King, with better customer service, environment and food.