In 2003,RST--who I like to think of as the B. F. Traven ('Treasure of the Sierra Madre') of the Chowhound universe--posted an epic Oaxaca entry which can be found here http://chowhound.chow.com/topics/262553
RST's report focused on markets, tlayudas, fondas and such, not on high end or mid-range restaurants.
Fast forward to 2012. We find ourselves after nine and a half days in Mexico City with the luxury of six days in Oaxaca. To that end, we've compiled the below list.
Our focus is less on alta cucina and more on the elemental flavors of the area. That said, it cannot be ignored that one of us has a preference for good restrooms in addition to an appropriately discerning palate.
Mercado 20 Noviembre Fondas/ Comedor Maria Theresa
Sunday Tlacolula and/or Friday Ocotlan?
Central de Abastos
Mercado Sanchez Pascuas
La Escondida Sunday afternoon buffet / OR / LA CAPILLA –Sunday afternoon after Mt. Alban
El Biche Pobre
Las Quince Letras
Los Huamuches on the way back from Ocotlan
Marco Polo in el llano
La Gran Torta
Other, light suppers/drinks/antojitos?
Tlayuderia Las Reliquias Morelos 402
Tlayuda/Memelita Stand at Fiallo and Guerro
Tlayuda/Quesadilla Stand at Bustamante and Mina
All and any recent reports and experiences with these and allied chow choices would be greatly appreciated. Many thanks in advance!