Sorry for the late response. Somehow missed the notification.
I had read a lot of forum posts before the New Menus that said people were able to request off menu vegetarian food in the MDR and the MDR staff tried their best to accommodate it.
Based on forum posts since the new menu, it seems like the MDR does not honor any requests for off menu options for vegetarians. I was trying to find out if this was indeed true. If this is true and if it happens we don't like vegetarian/vegan item on the menu in MDR then our only choice would be to go to Windjammer. Which is obviously not the same experience.