IIRC the "Committee" (the Food and Beverage Working Group) was set up by Congressional legislation (IIJA) by the Congress and IIRC managed by the FRA (or maybe Amtrak, not sure about that), with an RPA representative in a leading position on it.
They submitted their report in May 2023:
https://www.railpassengers.org/happ...year-long-analysis-of-amtrak-onboard-service/
The summary of recommendation can be found at (PDF document):
https://www.railpassengers.org/site/assets/files/31312/fbwg_one-pager.pdf
Amtrak was supposed to respond to Congress in 180 days after submission. I don't know what exactly happened between Congress and Amtrak. Apparently it has upto five years to act on al;l the recommendations. I am trying to remember what if any was Amtrak's 180 day response.
As far as I can tell the net visible change since May last year are:
- restoration of traditional dining in Silver Service
- serving of Flex meals in plated form on the Lake Shore, can't remember if this was extended to the Crescent too
- restoring Dining Car but with Flex meals to the Crescent
- opening up Dining Car access to Coach passengers
- and most probably later this year by the dint of reorganization (if the rumors come true) of the Star and the Cap, most likely extension of Traditional Dining between Washington DC and Chicago.
- as a side effect some Superliner train probably getting the CCCs now used in the Cap, though what if any food service changes that go with it is anybody's guess I suppose.