Hannonmc,
Yes, I did see that is Norge's review and thought that would be a great alternative to mayo. Also I do change up the tuna and chicken retort pouches from time to time. I did slip a Lemon Pepper chunk tuna in one, and a Spicy and Sweet in another just to provide some variety. The chicken retort pouches are a good idea but the do cost a bit more than the tuna. And again, I do try to switch up the flavours in those as well.
If anybody would want a BBQ sauce instead of tuna you can ask. The fat free mayo sometimes is hard to come by, and I can't even find that condiment at any of the online MRE stores. So switching that out for BBQ or salsa I can accomidate that, I have plenty.