At the secret Oxfordshire base crew meals have gone, replaced by pax meals (which are tiny). Rumour has it (& this is a rumour network) that a Tri* steward set fire to a crew meal in the food warmer so they are now considered to be 'unsafe' to prepare - even in those ac equipped with microwaves.
Butty boxes are still being supplied for MCTs.
So we're not yet at the stage where crews have to stop at Lidl (opening soon....!) on their way to work to get their rations before departure.
But it's probably only a matter of time......