great advice above.
for breakfasts, we usually eat pre-cooked taquitos or oatmeal
lunches are sandwiches + apple
dinners we normally pre-cook, then freeze in gallon baggies. thaw them the day before, then reheat in a huge teflon stewpot.
agree with Wytex advice on trying to do something to help out while there, and splitting firewood is always welcomed.