I am glad that it helped you!
Yes, I am a lacto-ovo vegetarian from way back! I have to say I found eating veggie at DLR much easier then WDW at CS. But that is because we had a lot of issues our first trip and stuck to TS our other trips. Bumbershoot is the best person to ask about allergies, since her son has issues and they are veggie. But I can at least give you a list of the common veggie treats at the CS places.
MS- is mostly snack treats and one TS
Adventureland- Bengal BBQ has a veggie Kabob, but I haven't had one in so long I have no idea what they were, but I know mostly grilled veggies
NOS- Veggie Gumbo served in a Bread Bowl YUMMY!!!!!
Frontierland- Rancho is more of a Cafeteria style place for "mexican" food that is pretty good and has several options, my favorite is the huge tostada I always get to share, I know they also have bean and cheese burritos, cheese enchiladas and more
Critter Country and Fantasyland- mostly veggie burgers
Tomorrowland has veggie burgers, and I think another sandwhich option, and the Pizza Port with pizza and veggy pasta dishes
There is a number to call for all TS, and you can make notes on PS (ADR's at WDW) and chef will come out to talk to you. At CS you can ask to see the ingredients listings and that should help as well.
If you have more questions just ask as you can tell we have a lot of DLR know it alls around here each with their own specialty