You can cook fish in a rice cooker

Looks like you can cook rice first, and then cook the fish. Once almost all the water is gone, you add the fish. I like the frozen fish from Costco. Mom made some in her pressure cooker. The instructions said 3 minutes, took a total of 13 minutes. The fish was better this time then the last time, and I said that the last time too. Fish gets better each time she cooks it.

http://www.livestrong.com/article/545369-how-to-cook-fish-in-a-rice-cooker/