This recipe uses flank steak as it is very thin, along with bacon, onion and spices.
But flank steak isn't the only type of meat this will work with, this recipe can be easily modified to accommodate a wide variety of meat types and ingredients which to include with them. Thin cuts of chicken, pork or other types of beef can be used, either by filleting the cut or tenderizing the meat so it's about 6mm (1/4").
Also, veggies. You can easily substitute the meat in this recipe to use thinly cut slices of eggplant, zucchini or other flesh, bendy, flexible vegetable. 6mm(1/4") thickness, same as meat.
Remix all the above ingredients to make your own.