If you can, have one or two of the REMFs designated as cooks and in charge of a chuck wagon. It could be a van, pickup, or SUV, with maybe a trailer with the stoves, tarps, folding tables, coolers, etc.
If it all runs smoothly, the unit should be able to concentrate more of its time and energy on combat training and less on how thet're going to heat their ramen noodles.
However, the vast majority of units just simply aren't big enough to really justify having a chuck wagon during peace time.