Chop:
Slice the cabbage in half and remove the core. Lay each half flat and slice into thin shreds, then cross-cut into confetti-sized pieces. Dice cucumbers and avocado, and finely chop green onions — aim for uniform size.

Mix:
In a large mixing bowl, combine chopped cabbage, cucumbers, avocado, and green onions.

Make the Dressing:
Blend all dressing ingredients (see linked Green Goddess Dressing recipe) in a food processor or blender until smooth and bright green.

Toss and Serve:
Pour the dressing over the chopped veggies, to taste. Toss well to combine. Serve immediately as a salad or with tortilla chips as a dip.