Most Helpful Girl
She should be open minded, usually people won't care for your eating presence and just worry about their own. However some aren't like that, you can ask her if she minds!
Most Helpful Guy
When I was interested in this one girl and found out she was vegan a friend teased me by saying "I should tell her you may be vegan but you'll still take QMan's sausage right?"
Ask her on how she feels about meat most vegans and vegetarians I know don't care if I eat meat. I don't know if your girl will mind. She shouldn't though since she can't force you to change your eating habits.