I take a lenient stance toward emergency food. I figure that for short term stuff like traveling and hurricanes, it's enough to avoid wheat without going full primal. That said, definitely canned meats* and -- sorry -- canned vegetables are the best things to have on hand. They aren't that bad. PB&J is fine, IMO. If you need carbs, rice cakes and potato chips should work.
Beef jerky, nuts, pickles, olives, Slim Jims, root veggies like carrots and sweet potatoes, jars of applesauce, salsa...
Noodless canned soup and canned chili are good too. The occasional baked beans is ok too, IMO.
*My emergency supply has a can a of Spam. Do I ever intend to eat it? No, but I need it for cultural completeness. You can't have an emergency supply without SPAM.
5'0" female, 42 years old.
Started Primal October 31, 2011, at a skinny fat 111.5 lbs.
Current weight: 101.5. lbs and holding steady. Spring yardwork here we come!
Co-worker 1: Needs to lose ~50. Now he wants to start Mayo Clinic Diet. Yeesh. Give it up, man.
Co-worker 2: Needed to lose ~55. Lost 20 from stress. Started Primal in Sept, lost 20 more, but gained 10 back on a carb spree. We're working on it.