I carry food on trips, but never carried fish (I don't count tuna). Seems like food poisoning waiting to happen as I'm not confident I can keep it cold enough in the cooler for 10+ hours of duty.
I'd be lying if I said I never cooked ramen noodles in a hotel coffee maker
Havent tried ramen in the coffee maker. I usually stock up on oatmeal and grits from the breakfast bar. You can easily get two or three free meals a week out of this.