I don't know about 'to-go' per se...but at Jiko last year, I couldn't even TOUCH my entree (have had GB and can only eat a small amount at one sitting) and the server boxed my dinner up beautifully for me to take home.
I hope they have 'carryout'...I am going to be taking summa my stuff back to my room and don't wanna have to carry baggies....but I WILL! LOL...just kidding.
Interested to see the replies.