Preheat oven to 425 degrees.

Peel the beets quarter them and in a large bowl toss the beets with 1 tablespoon olive oil and place them on a cookie sheet.  Sprinkle with salt and pepper and roast at 425º for 20 minutes, turn beets over and roast another 20 minutes or until tender.

While the beets are in the oven, grate 1/2 tsp. orange zest from 1 orange and aside. Trim the ends away from the oranges, remove the peel and pith carefully with a knife. Separate the orange segments and place them in a bowl.

Next whisk together 2 tablespoons orange juice, vinegar, lemon juice and salt. Once the beets are done cooking and have cooled down toss with orange segments and dressing.

Garnish with orange zest and walnuts. Chill before serving.