Vietnamese dishes are meals typically served with lots of greens, herbs, vegetables, and various other accompaniments such as dipping sauces, hot and spicy pastes, and a squeeze of lime or lemon juice. The dish is garnished with ingredients such as green onions, white onions, coriander, Thai basil (húng quế) (not be confused with sweet basil, Vietnamese: húng chó or húng dổi), fresh Thai chili peppers, lemon or lime wedges, bean sprouts and coriander (ngò rí) or culantro (ngò gai). Fish sauce (nước mắm), hoisin sauce and chili sauce may be added to taste as accompaniments.
Several ingredients not generally served with phở may be ordered by request. Extra-fatty broth (nước béo) can be ordered and comes with scallions to sweeten it. A popular side dish ordered upon request is hành dấm, or vinegared white onions. The dish is sometimes flavoured with cà cuống.