Another caveat...have you eaten mountain house before? I've tried some of it. The granola was good...not much else to say.

Check out http://backpackergeartest.org for some unbiased reviews of freeze dried foods. I know people's taste buds differ, but some of the freeze dried stuff is truly awful.

Hmm, now that I think about it, maybe it doesn't matter so much if you're starving, but I'd think a little morale booster might go far to making your 72 hours more bearable.