Salvadoreans love quesadillas because they can’t have coffee without pan dulce. In El Salvador a quesadilla is sweet bread not a tortilla with cheese inside. Salvadoreans love having coffee with something sweet on the side. My mom is a very good example of this!
A very special spot in El Salvador that is known for its pan dulce is Pan Lido. It has all sorts of sweet bread; nothing like Mexican pan dulce, which is very popular here in the bay area. Some of the bread you will find at this shop is slapores, viejitas, margaritas, quesadillas, etc.
If you ever decide you want to try Pan Lido there is a location in San Francisco I would recommend.