Add the kale, red cabbage, green cabbage, apples, and carrots to a large bowl.
Add the olive oil, apple cider vinegar, honey, lemon juice, dijon mustard, and salt to a mason jar or bowl.
Whisk vigorously until all of the ingredients are thoroughly combined. If you're using a mason jar, close the lid and shake vigorously.
Pour the vinaigrette over the slaw and toss until combined.
Notes
For the best texture and flavor, eat this slaw the same day that you make it. The apples will start to brown after a day, and the veggies will get soft.
Use any kind of crisp apples in this salad! I used Honeycrisp, but you can try Granny Smith, Gala, or Pink Lady.
Make this recipe vegan by replacing the honey with maple syrup or agave.