We have a visual test of a restaurant in Thailand before we enter. If it is full of Thais we eat there as we know the food will be traditional, however if it is full of Westerners we give it a miss. This place we discovered by chance one day and looking inside and seeing it packed with Thai office workers we decided to give it a try.
The food is always delicious and remarkably cheap by Bangkok standards.
Here are some of our favourites ( I apologise for the quality of some of the pics. I was so excited to eat that I didnt check whether the photos were clear or not):