There’s the banh mi and there are these variations in Saigon

Vietnam’s banh mi has achieved well deserved renown as a delicious street food staple, but Saigon offers the quintessentially Vietnamese sandwich with fillings far more appetizing than the standard one.

Source: VNExpress International,
https://e.vnexpress.net/news/food/theres-the-banh-mi-and-there-are-these-variations-in-saigon-4530747.html