Be careful not to eat too much, even if it is cooked and freshly made. There are concerns about the mercury levels even in cooked fish, so it's generally recommended that you limit fish consumption to once a week. But if you get an occasional craving, it's cooked well and hot, I would think that would be okay.
That's what my doc told me anyway.
She doesn't even seen too concern over the raw fish but want me to stay away from them just in case.
As long as it's fully cooked and freshly made. You should be ok. I got sushi roll craving once in a while too. Just make sure you ask them to leave out those fish roe.
No its best to stay away from all of those deli/food court things unless they make it right there in front of you, otherwise its a case of bacteria that could be lurking in it