If there aren’t any C rations left in warehouses, issue them MREs.
They must not have any disciplinary problems at all if they can’t find folks for KP duty.
A final suggestion - but Second Lieutenants on the job. It’s not like they do anything important anyway.
I like your final suggestion best! LOL!
I have no problem using junior officers as Mess officers, but give them a little respect before you have them scrubbing pans.