dry food for camping

[Stockrex]

Three days, I would bring something substantial for 1 meal a day. Get one MRE, or similar item, for a main meal.

you mean the military ones?

[snowgetter1]

Or get some canned food like spaghetti or stew like stuff and heat it with sterno. Just make sure you vent the can prior to applying heat or you would have a mess.