We were only buying one a day Gary, and sharing it along with some pineapple, sticky rice and som tam if i fancied it. Another good place to get topped up on your protein was at the hole in the wall on buckaroo, they pack any chicken dish with loads of chicken so we used to eat there quite alot, jay used to have 2 chicken dishes when we went there to keep his protein intake up, heres a pic
He was only having one or two of the milo a day at most too. Used the 0% milk for a bit extra. I guess you just have to use what you can get your hands on, but he was on about taking his own protein sachets out there next time for convenience.