Place a small skillet over medium-high heat and add the oil. Add the curry leaves, mustard seeds, coriander, and salt and toast for 1 minute. Stir in the soya beans and cook for about 3 minutes. Let the mixture cool.
Put the papaya chunks into a salad bowl along with the rice and cooled soya bean mixture. Add salt, pepper, and lime juice and toss well. Taste and add more salt, if needed.
Recipe courtesy of Bal Arneson