I'm chiming in late here and this is my first post
What I do for a PWO meal on the go is this.
I take 1 scoop of PP
1 Tbsp of Sugar Free Fat Free Pudding mix
Couple of packets of your favorite sweetner (I like Stevia)
I add this to a small round microwavable bowl.. (those small plastic ones that seem to be every where in the bottom of your cabinet work best)
I add water by the tablespoon just till I get it to the consistancy of paste. I then microwave it on high for 50 sec and when it's done you have a protien cake. Sometimes I add a tbspoon of peanut butter in with the mixture and other times I spread it on the top after I'm done cooking it.
More often then not I put these little suckers in a ziplock bag and they ride around all day with me in my purse. It will take a couple of days for them to start to spoil. They are great to travel with too.