Company-supplied dinner rations for our evening train journey from Nanjing to Shanghai included the following:
One bottle water
One can Coke
Ten slices white bread
And nothing more. No jelly. No butter (either peanut or plain). Nothing to compliment the white bread in any way or allow you to have any semblance of a sandwich. I guess that's the price you pay when you travel with a large contingent of vegetarians in your group.