Oyster vermicelli, also known as oyster mee sua, is a famous noodle dish in Taichung. It consists of vermicelli noodles cooked in a flavorful broth made from oysters, pork, and various spices. The dish is topped with fresh oysters, cilantro, and garlic. Oyster vermicelli is known for its rich and briny flavor, and is a popular choice among seafood lovers.