Oh My Pho, indeed! At least that's what I was saying to myself after trying their food. Found on ul. Wilcza, just off the main ul. Marszałkowska, this Vietnamese street food joint serves up some mighty dishes (not bad considering the reasonable prices).  The interior is small (two rooms), sparse, with some white and red walls with photos dotted around; you'll most likely walk in and have to wait a short time while you wait for others to eat up and make space, but that's just a sign of how popular this place has become for those looking for good quality quick food. The menu is extensive (including vegan and vegetarian), so you're spoilt for choice - we went for Nuong Kieu Saigon (with chicken) and Bo Xao (with beef) and were delighted at how tender the meat was. Friendly service and good food - a simple combination that works well.