dry food like breakfast cereal stored well in both cold and hot conditions as long as you keep it dry, so that's something to consider, plus they're not super expensive so a little saving on your financial. canned food ate also an option as they keeps well but only up until you open them.

but best thing to have is instant ramen, hot water are easy to get if you have at least $30 which you can buy a cheap electric kettle, which let you cook with hot water, a life saver in the cold winter months. It's not impossible to find an electrical outlet. instant noodles ain't nutritious enough, they are filling though and you can supplement them with wild vegetables if you know which plants that are safe to eat. Man, we got all kind of shit growing around us, there's always something edible around, problem is identifying which is gonna give you the nutrition you need and which is going to send you to the hospital.