- Hear about the new train coming in? Gravy Train. It's new and improved. That great complete dinner that dogs love has even better-tasting gravy than before. Timetable here knows that. Just add warm water to new Gravy Train and you get a thick, beefy-tasting gravy. A rich, darker gravy. He liked the good taste before and now the improved gravy seems to make him lick his chops more. New, improved Gravy Train with better-tasting gravy. You know, I think he actually smiled.