You might find this thread - http://www.flyertalk.com/forum/showt...ght=loobtastic - of use as I ased a similar question last year.

Just to give a bit more info, they gave us an extra CW meal on the outbound, then when Swiss Jr was hungry later on, the crew raided their own supplies (the crew trolley) and procured I think a sandwich for him which was great.

On the return (it was a daytime flight) we took a weetabix with us, they provided the milk and bingo, then he again had the afternoon tea to snack on a few hours later.

BA's crew really helped out and although we were in Club, i'd hope the reception would be equally warm in Y too...