Patsun is a type of traditional noodle dish from the Philippines, often made with thin rice noodles. It is typically stir-fried with various ingredients such as vegetables, meat, and seafood, and flavored with soy sauce and other seasonings. The dish is known for its rich flavors and is commonly served as a main course in Filipino cuisine. Patsun is similar to other Asian noodle dishes, such as chow mein or stir-fried noodles.