Koh Phangan has lots of small local restaurants serving both Thai and Western foods. Some of our recommendations are

BBQ
Mugata – (in Ban Tai, eat as much as you can for 140baht. Includes fish, meat, vegetables, rice and desert)

Thai and western Food Veg / Non veg
Tayou Liberty (in Thongsala)
Fisherman’s Restaurant (in Ban Tai)

Japanese Food
ZEN (in Thongsala)

Indian Food
Om Ganesh (in Hadrin)

Macrobiotic Food
Macrobiotic World – Natural EFE (Sritanu opposite the lake)

Food Market Thongsala Koh Phangan