Preheat oven to 325°F. Spread the hazelnuts on a baking sheet lined with parchment paper. Lightly drizzle with oil (or spray with cooking spray) and sprinkle a small amount of cinnamon. Roast 17 minutes.
All the nuts to cool and coarsely chop them up. Reserve for use later.
If using arugula, arrange a light layer on your platter of choice. Arrange your endive petal either in a circular fashion, or in rows, or in a zig zag pattern.
Either fill the endives with your radishes, beets, and assorted citrus, or create a feast for the eyes by plating them any which way. Example: some citrus inside the endives, some radishes surrounding the border, a couple of beets scattered in a corner, and on. The less thought gone into the plating of this colourful dish, the more pleasing for the eye it will be.
Sprinkle your pomegranate seeds liberally on top. Drizzle your dressing over the top of the salad. Top with a few sprigs of parsley if desired. At this point, layer on your hazelnuts: the star of the dish!