The Thai Green Mango Salad (or Yam Mamuang in Thai) is a traditional recipe for Thai cuisine, which brings a beautiful balance between acidity, softness and spicy. It is a dish that is both fresh and spicy which uses green mangoes, still crunchy and slightly acidic, associated with a spicy and tart vinaigrette. It is a healthy and light salad like the papaya salad.
It's not easy to find green mangoes, but maybe you will be able to find unripe mangoes. For my part, I found some frozen at the Asian store.