To make the dressing, whisk together the maple syrup, tamari, ginger, Sriracha or chile garlic sauce, lime juice, sesame oil and vinegar in a large bowl. Taste and adjust seasoning with salt or more lime juice.
Add the cabbage, carrots, asparagus, celery, red bell pepper, and mango to the large bowl with the dressing. Whisk the dressing one more time before adding everything!
Toss the slaw well, adding the pumpkin seeds as you go.
