Whisk together mayonnaise, sour cream, Dijon mustard, lemon zest, apple cider vinegar, sugar, salt, and black pepper for the dressing.
Add a pinch of salt to your grated cabbage in a bowl and mix, squeeze out any access water from the cabbage sweating.
Combine dressing with shredded cabbage, shredded carrots, red cabbage, and chopped green onions.
