Trim the ends off the brussels sprouts. Discard the ends.
Place the brussels sprouts in a food processor. Pulse about 5 times until the sprouts are shaved to the size you'd like.
Place the shaved brussels sprouts in a bowl.
Add the diced red onion, sunflower seeds, dried cranberries and parmesan cheese.
In a small bowl, mix together the dressing ingredients.
Pour the dressing over the salad and mix well.
The brussels sprouts will "soften" as the salad sits with the dressing. For a crunchier salad, serve immediately to within 1 hour of mixing. For a softer salad, allow the salad to marinate in the fridge with the dressing for about two hours.
The calories shown are based on the recipe serving 10, with 1 serving about 1 cup of salad. Since different brands of ingredients have different nutritional information, the calories shown are just an estimate. **We are not dietitians and recommend you seek a nutritionist for exact nutritional information.**