They have occurred at a few places; MOA or Dave and Busters. If you're on Fetlife check out the MASS group. That's usually where it is posted I believe. If I hear anything I'll post it here.
I second Tygon's post. The munches are a very relaxed, fun and safe way to meet others in the area. We have been to a few and enjoy the time spent with people in a judgement free environment. Hope to see you at one soon.