1. Wash, trim and shave Brussels sprouts;
2. Slice apple and red onions, chop walnuts;
3. To make the dressing- shake olive oil, champagne vinegar, Dijon mustard, salt and pepper until well incorporated;
4. To a salad bowl, add shaved Brussels sprouts, apples, cranberries, red onions, walnuts and Parmigiano Regiano; pour dressing over and enjoy!