Everything is in the name: papaya salad.
You can find this salty and sweet salad in a lot of streets in Bangkok as in Banglamphu or Silom Road.
This is also one of the most typical Thaï dishes, made of papaya, shrimps, candied tomatoes, peanuts, soya bean sprouts and beans.
It is delicious, fresh and light. 
Just taste it!