centro-historico
Tlayudas Las Animas on Mariano Matamoros 203 is the Thursday-to-Saturday night-grill stand near Carmen Alto, quieter than Libres just blocks away.
Why locals love it: Thursday-to-Saturday only, in front of the Carmen Alto church; locals know not to confuse with Libres.
Tip: Lighter crowd than Tlayudas Libres; order the tlayuda with tasajo and quesillo for the canonical bite.
reforma
Yu Ne Nisa in Reforma is the under-the-radar Istmeno-Zapotec room on Amapolas, with totopos istmenos and chile rellenos de marlin in a quiet street.
Why locals love it: A 20-minute taxi from Centro into Reforma residential blocks where few tourists go, Istmeno cooking with depth.
Tip: Take a taxi, the address is hard to spot from the corner of Amapolas and Coniraya.
reforma
La Teca in Reforma is Deyanira Aquino's home-kitchen Istmo room with five tables, no sign and 30 years of garnachas-on-banana-leaf cooking unchanged.
Why locals love it: Five tables in a Reforma residential street; no sign, no website; you knock at the door.
Tip: Book by phone the day before (951 515 0563); lunch only, 14:00 to 16:30.
centro-historico
Mercado Sanchez Pascuas on Porfirio Diaz is Centro's locals-only morning market, with tejate, tamales and comedor counters from 06:00 in three small halls.
Why locals love it: Northwest corner of Centro, well off the tourist trail; locals-only morning market open from 06:00 with three small halls and three comedor counters.
Tip: Arrive 07:00 to 08:30 for the freshest tamales; the comedor counters (Yolis, Lupita) close around 15:00.
xochimilco
Ancestral in Xochimilco is the thatched-roof grove on Lopez Alavez, well away from Centro tourist flow, with the seven-moles tasting platter as the headline.
Why locals love it: In Barrio de Xochimilco, the weaving quarter most tourists never reach; thatched-roof grove.
Tip: Take a taxi (the Lopez Alavez block is a steep climb); book the moles tasting for two.
centro-historico
The empanadas-de-amarillo grandmas at Plaza Llano cook only Friday to Sunday afternoons, folding thin masa around mole amarillo and quesillo on the comal.
Why locals love it: Weekend-only street vendors that don't show up on Google Maps; a dozen abuelas with charcoal griddles.
Tip: Friday-Sunday from 16:00; expect to share a bench, the bench at the corner of Plaza Llano is the centre.