You will likely have extra salad dressing. If you, like me, are partial to highly-acidic salad dressings, you might prefer this dressing with an additional tablespoon or two of lemon juice. Don't have Champagne vinegar? A good white wine vinegar can be subbed. For a less-fussy presentation, toss the radicchio, endive, and arugula with the dressing at once in a large mixing bowl (you'll lose the Italian-flag effect, but it'll be just as tasty). To make parmesan shavings, use a vegetable peeler (I'm partial to
this y-peeler).