If you've never had raw brussels sprouts before, this salad will be a revelation. To save time, use a handheld slicer for the sprouts and onion.
AT HOME (UP TO 1 DAY AHEAD)
Slice brussels sprouts very thinly. Pack sprouts, red onion, and tangerine segments in separate resealable plastic bags. Chill.
Put oil, lemon juice, 1/4 cup cheese, the salt, and pepper in a jar with a tight-fitting lid. Chill.
AT THE PARTY
Put sprouts, onion, and tangerines in a large salad bowl. Shake dressing well and pour over salad; toss very well. Sprinkle with remaining 2 tbsp. cheese.
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