This two-story seafood restaurant has been feeding Mae Nam residents for decades. The interior is quite simple, with lots of dark wood. Don't be intimidated by the local crowd—menus are in both Thai and English, though the staff's English is a bit rough around the edges. The most famous dish, stir-fried crab with black pepper, is highly recommended. And prices are low, even by Koh Samui standards.
95 Soi Kohseng, Koh Samui, 84320, Thailand