Rio de La Plata in Elmhurst specializes in sandwiches de miga and facturas, the umbrella term for pastries in Argentina. These crustless Argentine sandwiches come as single, double, or triple-deckers, and look like English tea sandwiches or Italian tramezzini with their sharp cuts, which makes sense given the adoption of Italian cuisine in Argentina given historical immigration. The bakery is pequeño, so pair your miga (I like the ham and cheese) with an alfajor or medialuna for a perfect lunch to-go.