Bún Bò Nam Bộ is a Vietnamese rice noodle dish originating from the southern region, combining beef, vegetables, rice noodles, and a sweet and tangy fish sauce called 'nước mắm.' In Vietnamese, 'Bún' refers to rice noodles, 'Bò' means beef, and 'Nam Bộ' denotes the southern region, translating to 'Southern-style beef rice noodles.' Unlike traditional pho, this dish is served without broth and is typically enjoyed as a light, mixed noodle salad.