Boil 1 pound beets in salted water until tender, 30 to 40 minutes. Drain, then peel and slice into wedges. Toss in a serving bowl with 1/4 cup olive oil, 2 tablespoons sherry vinegar, 2 tablespoons chopped chives or scallions, and salt and pepper. Add 1 bunch arugula and 2 segmented blood oranges and toss.
Photograph by Antonis Achilleos