I'll get that Pan Mee if they can do it without pork, and I bet they can.
Pork may be inherent to the broth, they don't say on the menu but I believe traditionally that would be typical. If you're in the "as long as I can't see it" club you'll be okay. As my ancestors used to call it when they went out for Chinese, "Safe Traif"
According to Sietsema, Let's Makan uses a chicken base in theirs. That doesn't mean there isn't also pork in it, dunno.