A spring roll is a traditional Chinese dish consisting of a thin pastry wrapper filled with a variety of ingredients, such as vegetables, meat, and seafood. The term 'spring roll' is derived from the Chinese chūn juǎn, which literally translates to 'spring roll.' The three-letter acronym SOD stands for 'spring onion and diced, ' which is a common filling for spring rolls. Spring onion and diced vegetables are usually stir-fried together before being added to the wrapper. Spring rolls are often served as an appetizer or snack, and can be fried or steamed.