Yes, this has been happening often enough now that we think it deserves its own graphic! Reader Eric Wilson writes:

My coworkers have been raving about the Grilled Cheese Truck (http://thegrilledcheesetruck.com/) and I just found out that it is coming to Altadena tomorrow (Friday) night from 7:00 to 10:00.  Let’s give them a reason to keep coming back.  Grilled cheese fans unite!

It’s at 7 PM-10 PM, as part of “Drink and Draw Art” at McGinty’s Gallery at the End of the World, 2475 N. Lake.