Khrua 1 Tambon Restaurant
You can find this amazing place at Phang Nga province not far from Khao Sok National park. Restaurant is build from bamboo on lake just next to main road so its hard to miss. This place its quiet busy so maybe is possible that you will wait for your table.
I get taste for some sea food so i order Garlic Pepper prawns with vegetable and rice. Food was on the table in 5 minutes and taste so good. For only 150 Thb (less then 5$) i was full and happy.
The lake on witch is restaurant build is filled with many kinds of Asian fishes. If you want you can buy bag of dry fish food for 20Thb (about 0.6$) and feed fishes.