When making dinner, why don't you set aside a piece or two of the karaage? Then, you can make this to have for dinner the following day.
The texture of leftover karaage becomes just like ham the next day. Just mix it all together to make a filling side dish.

You can also use steamed chicken, boiled chicken, tatsuta-age, etc. The easy Chinese dressing goes well with bean sprouts or jellyfish as well. Recipe by Heartful Kitchen Rei