A good place to sample Mexican fast food

I like the huaraches and alambres at Kekas Coco on the left side of Paseo de la Presa as you go toward the presa. It's past Farmacia San Francisco and a child care center but before the street Subida del Molino that goes up to the Panoramica. I'm not sure when the tiny restaurant opens but it stays open in the evenings. 3:30pm is a busy time there. Tea de limon served in a big cup for 7 pesos.