Feel free to tinker with the amount of lime, cilantro, scallions, and jalapeño to suit your palate. The salad is terrific as soon as it's made, and arguably even better the next day. You can easily double or triple the recipe, since it's a great make-ahead dish for a party or potluck.
This slaw keeps well in a covered container in the fridge for up to 3 days.
For extra color, use 1/4 of a red cabbage and 1/4 of a green cabbage. Reserve leftover cabbage for another use.