The first time I visited Nick Soh’s Seoul Paulo food cart, he greeted me with an "I'll explain everything in a second," as he finished up another order. It was curious that food would require an explanation, but while Seoul Paulo has some signage outlining the anatomy of the cart's Tapioca Flats, Soh is practiced in guiding new faces through his menu. “This food is something where you probably need to know what it is before you go ‘Oh, I want that,’” he said. Just celebrating his first year in business—a year spent stuck behind a wall of some recently cleared construction on SW Oak at SW Fifth—Soh is also still in the process of adding to his menu, but the Tapioca Flats are a staple. They’re like a thin crepe pancake, with seasoned meats and vegetables inside, that comes out looking like a stuffed quesadilla. The chewy tapioca gives the flat its unique texture and also makes them naturally gluten free. SUZETTE SMITH