I don't know what the options are, but I am a vegetarian. Assuming that they can do anything, one of my favorite veggie meals is the Thai Tofu Noodle Bowl from the Brown Derby. Another one of my favorites which might flow better with your pasta ala vodka is the playground of spring vegetables from Victoria and Alberts. Last time I had it the presentation was amazing.
Just try to make sure that whatever you pick isnt' bland. A lot of Disney's veggie meals are really really bland and kind of boring...
Sorry I can't be of more help.