Do tacos in Mexico traditionally have cheese?

Some tacos do have cheese like: Alambre Choriqueso Chicharrón de Queso Quesadilla con Carne But beware that in Mexico we use authentic cheese (yes that one that doesn't taste like plastic). read more

In general terms, no, Traditional Mexican tacos do not have cheese (unless you are eating a cheese taco). Pictured, a Panela cheese taco. If the caso has melted cheese then it is no longer a taco but a quesadilla (unless you are in Mexico city, but that’s a whole other story). read more

For example, dishes from Central and South Mexico are very rich and complex with sauces like Mole just to mention one. In the NorthEast like in Nuevo Leon, you'll find a lot of Carne Asada, Cabrito (baby goat) asado, Tacos al carbon, etc, that is not cooked in a sauce but you do normally add salsa to it. read more