What was mainly served sometimes 3 times a day to Merchant seaman during WW11?

Question

My uncle was so sick of it, when he came into port, he ran for the first cafe and thats what they were serving that day for the special.

Answer 1

I assume    FISH  !?

Answer 2

spam

spam spam spam spam

that's crushed ham in a can...

spam...

Answer 3

I dont know--was it crab?

Answer 4

I was not aware there was a ww 11.  

I was also not aware that this was "Yahoo!Riddles"