Some of those packets of Kraft instant Mac & Cheese ain't bad. A little boiled water and some tuna and viola!

If you can keep em at least cool, a couple tins of pilsbury biscuits or breadsticks or crescent rolls come in awful handy. They can be draped around a clean stick and roasted/baked over a fire and eaten as monkey bread. You'd be surprised at how easy they are to keep and prepare, and how good they taste at camp.

For that matter, you could just take some bisquik or other "just add water" quickbread mix and make your own monkey bread. It can get a bit messy I suppose, but camp is like that anyways.

Since it doesn't sound like you have to pack anything, canned goods are pretty darned suitable. Also, them pudding packs make nice quick snacks.

Minute rice stretches everything, including breakfast.