The tuna in the pouch is really good quality, better than canned. Some companies actually sell fully-cooked ground beef in a pouch that doesn't need refrigeration. That really makes me wonder, but for a camping trip it might be perfect. And there's always Spam.

I think nuts are a good idea too. And I'm not a big fan of the Atkins bars, but they might be a perfect snack in this type of situation. Also, MiniCarb makes a low-carb granola that's not bad.