Peel and section oranges over a bowl; squeeze membranes to extract juice. Set sections aside; reserve 1-1/2 tablespoons juice. Discard membranes.
Cut beets into wedges.
Combine reserved 1-1/2 tablespoons juice, vinegar, oil, salt, and pepper in a medium bowl; stir well with a whisk.
Divide beet wedges and orange sections evenly among 6 salad plates. Top each serving with 2 tablespoons onion slices. Drizzle with vinaigrette, and garnish with pomegranate seeds, if desired.
Yield: 6 servings.
CALORIES 116 (37% from fat); FAT 4.8g (sat 0.4g, mono 3.2g, poly 0.9g); PROTEIN 1.7g; CARB 18.6g; FIBER 4.8g; CHOL 0mg; IRON 0.7mg; SODIUM 363mg; CALC
53mg