A while ago we ate in a restaurant which had one of those map place mats. It wasn't the typical Tenerife map you find in quite a few trad and casual restaurants, it was more interesting in that it highlighted areas by their gastronomic specialities in jaunty, cartoon fashion.
The latest Tenerife location to suffer the Tripadvisor 'not quite accurate' treatment is La Orotava in the north of the island. A thread titled 'Polluted streets & impossible parking' drew me in because, well, it's not exactly the way I'd describe La Orotava.
Gofio has been a staple part of the diet of islanders since before the conquest and can be found in every Canarian supermarket on Tenerife.