Begin by shredding the red and green cabbage. You can use a sharp knife or a food processor for this task; just ensure the pieces are of similar size for even mixing. Next, julienne the carrots into thin strips, and set them aside.
Using a box grater or a food processor, grate the apple. If you prefer a more subtle apple flavor, you can peel it before grating, but leaving the skin on adds some extra color and nutrients.
In a large mixing bowl, combine the shredded red cabbage, green cabbage, julienned carrots, and grated apple. Toss them together gently to mix the colors and textures.
Sprinkle in the mixed seeds, ensuring they are evenly distributed throughout the coleslaw. This will add a delightful crunch and depth of flavor to the dish.
Pour the Litehouse coleslaw dressing over the mixture, followed by the tablespoon of lemon juice. The lemon juice not only adds a bright flavor but also helps to keep the apple from browning.
Using a serving spoon, gently toss everything together until the vegetables are well coated with the dressing. Taste and adjust seasoning if desired, then serve immediately or refrigerate for later enjoyment.