Vegetarian Phrases for Italy

In article (JSchacht) writes:

I'm hoping someone out there knows Italian and can provide a little helpful information. I am traveling to Italy next month. I am (mostly) vegetarian, so I'd love to know how to say/ask the following food and restaurant questions:

I think you will be fine. It's important to let the server know you are vegetarian though.

And of course:

If you need any other phrases/tips let me know.

Steve (