Add the cabbage, mango, green onion, bell pepper and jalapeño pepper to a bowl.
Sprinkle with salt and pepper, drizzle with the vinegar. Taste and adjust the seasonings.
Notes
Can use purple or green cabbage or use a 10oz package of coleslaw mix. Add more jalapeños if you'd like it hotter. Rice vinegar is mild and gives the best results, you can use white wine vinegar.