El Túnel has been on Carnaval Street, directly opposite the Teatro Ángela Peralta, since 1945. The dining room is plain — tile floors, plastic tablecloths, fluorescent light — and the menu is just as straightforward: pozole rojo with all the trimmings, chiles rellenos, sopes, gorditas, all served on handmade tortillas pressed at the back of the kitchen.
This is not where you go for atmosphere. It is where you go after the theatre, or after a long afternoon in the Centro Historico, for a generous plate of food at half the price of the places on the plaza. The pozole is the order.