“There should be a Waffle House Car on every Train.”
That’s effectively what the old-style, aka “heavyweight”, dining cars were, with about a third of the space being the galley-style kitchen and the rest was the service/dining area. I’ll be 64 next month and I got to experience that once in my life. It was either just after AMTRAK took over passenger trains or just before the change. The service was essentially what you can see in old movies with black men as table waiters and a mostly black staff in the kitchen. I wish I could recall if it was the summer of 1970 or 1971, as AMTRAK took over in May 1971.