Make the dressing by placing all ingredients into the Thermomix bowl and blending 20 sec/speed 8. Remove from bowl and set aside.
Place half a bowl full of Brussels Sprouts at a time into the Thermomix bowl and chop 2 sec/speed 5. Remove from the bowl and add to the dressing. Repeat until all are chopped. Repeat with the kale leaves as well.
Toss the salad together with all of the dressing.
Assemble the salad on a large platter and top with croutons and shaved parmesan. Serve within an hour or two of making.