Essaouira is Morocco's favorite beach town, popular not only with European holiday-maker types, but also Moroccan families from elsewhere in the country. (Our gorgeous gang of Gastronomads is going to love it, too...)
Street food is everywhere. And the most popular kind of street food appears to be escargot.
As the sun goes down, families crowd around these escargot carts, and kids as young as two seem to love them.
I'm personally not aware of any other place where escargot is a popular street food.