SDCC is really rolling out the nerdy food delights this year and Hunk's Food Goo, from Voltron, is one of the many exciting (if not weird) options on offer. It's cold, green, tastes like watermelon, and it's free! Netflix should consider releasing this as a limited-edition treat, or at least offer it at major cons, because it was sincerely good.
Here is the food goo itself:
Here's the front of the truck:
Here's a closer look at the pick up window:
The sign for the food goo truck: