In a large mixing bowl, combine the finely shredded green cabbage, red cabbage, shredded carrot, sliced red bell pepper, sliced green onions, and chopped parsley. This mix of vegetables provides a variety of textures and flavors.

In a small bowl, whisk together the olive oil, apple cider vinegar, honey, Dijon mustard, salt, and black pepper until well combined. This dressing will add flavor and help to soften the cabbage slightly.

Pour the dressing over the vegetable mixture in the large bowl. Toss gently to coat all the vegetables evenly with the dressing. This ensures that every bite is flavorful.

Let the slaw sit for about 5-10 minutes before serving. This resting time allows the flavors to meld and the vegetables to soften slightly.

Serve chilled or at room temperature as a side dish or topping for sandwiches.