From John Singler on Facebook, this shot of a restaurant (with take-out and delivery) in Sheepshead Bay, Brooklyn:
The marquee has two faces: the one you can easily see here (for Yummy China) and, to the right and at a slant, its multicultural companion (for Yummy Taco).
(Delivery menu here.)
The place seems to have been originally Chinese only (well, Chinese+), with the Tex-Mex added fairly recently. The Chinese+ part has a wide range of Chinese dishes, plus some Thai dishes, many things fried (chicken, shrimp, fish, scallops, plantain), and udon.
The Mexican side of the menu has assorted fajitas, tacos, quesadillas sincronizadas*, tostada salads, nachos, Mexican pizza, burritos, and enchiladas, plus cheeseburgers, chicken sandwiches, fish sandwiches, and chicken nuggets. This is America!
(*”Made with (2) 8 inch fresh flour tortillas stuck together with melted cheese.” That is, resembling a quesadilla, but made like a sandwich.)
In Mexican cuisine, the sincronizada ['synchronized'] … is a tortilla-based sandwich made by placing a slice of ham and a portion of Oaxaca cheese (or any type of cheese) between two flour tortillas, then grilled until the cheese melts and the tortillas become crispy. Then cut into halves or wedges to serve.
… The sincronizada is supposedly to be consumed alone, but in some regions of Mexico it is common to add a regional sour cream, salsa or guacamole as topping to make a richer flavor. The Tex-Mex version also contains beans, cheese, beef fajita meat and avocado and Monterey Jack cheese instead of the traditional Oaxacan one.
Sincronizadas are available in the Bay Area, though I haven’t sampled them. Here they seem to be Mexican rather than Tex-Mex, as in these offerings from La Guarecita Market and Taqueria in San Pablo
The owner is from the small town of Chavinda, Michoacan, Mexico. [The chavindeña] is a snack that is popular in that town, a local version of the quesadilla. It is a razor-thin flour tortilla, lovingly griddled a light brown with just a bit of crispness to it. Inside is a filling of the house-made chorizo, their great beans, a dab of a mild tomato sauce, a little cheese and a sprinkle of finely chopped cilantro.
It comes with a tomatillo sauce that has a hint, almost an afterthought, of sweetness. There is also a charred whole jalapeño pepper on the plate. I asked about the pepper because it was mild and delicious, not at all the flavor I would have associated with a jalapeño.
… The sincronizada, another version of a quesadilla, is also a thin flour tortilla, larger than the chavindeña. It is filled with thin-sliced ham and melted cheese. A jalapeño also comes with it. (link)
(Searching on sincronizada pulls up quite a few pages on synchronized swimming, but also some on edible sincronizadas, also known as quesadillas sincronizadas and sincronizadas quesadillas.)