I had never heard the term tacos dorados before and while looking it up on the web, I found this great article on the regional differences in tacos in Mexico and even the Origins of the taco (Axtecs).
It is an easy and informative read. I worked a year in Mexico City and I learned a lot. I never thought about it before, but it is true there are morning tacos and night tacos.
Discussed are TACOS DE CANASTA, TACOS DE BARBACOA, TACOS DE CABEZA, TACOS AL PASTOR, TACOS DE CARNITAS, TACOS DE FRITANGAS, TACOS DE CAZUELA, TACOS DORADOS, and TACOS DE PESCADO.
It discusses ingrediants, preparation, which regions serve these and the regional differences for each type.
The site itself is a wealth of information about Mexican food. It has more information about each Region of Mexico, comprehensively described than I have ever seen. There are many, many recipes. The article about the Panadrias is wonderful. There is a list of Food festivals thru the year. Wonderful, wonderful wonderful site.