very similar to below, but with cabbage. this would be a good candidate for some chiles (dried or fresh).
head napa cabbage, finely minced/shredded
1 large shallot (you could probably use 2 if you're up for it)
2 lemon cucumbers, diced
1 bunch cilantro
1/2 c fresh squeezed lime juice
1/4 c fish sauce
palm sugar (or regular sugar) to taste (try about 1 tbsp)
I always try to mince the cabbage up ahead of time and salt it to get some excess water out. Otherwise, it gets a bit watery.