Canadian Restaurant Concerns

I went to Boston Pizza a few weeks ago and was very disappointed to find that their pomodoro sauce has parmesan in it, and their veggie burger contains feta! The only thing I could eat aside from a plain old salad was some fries. 

I'm thinking about writing the company. It states clearly on their menu that they work hard to try to accommodate all kinds of dietary restrictions, but frankly I think this is a pretty big one to miss.

Anyone else come across surprise animal-based ingredients in restaurant dishes?