This salad boasts sweet, sour, savory, and bitter flavors.
Heat oven to 425 degrees. Place large piece of foil on baking sheet, place beets in center. Drizzle with 1 tablespoon of oil, season with salt and pepper. Wrap foil loosely around beets to make packet. Roast until beets are tender when pierced with knife, about 1 hour. Let stand until cool. Peel and slice into 1/8-inch rounds, transfer to large bowl. Set aside.
Cut the peel and pith from oranges. Slice oranges into 1/4-inch rounds. Scrape juices from cutting board into small bowl. Add orange rounds to beets. Peel tangerines; separate into sections. Pull white pith. Add to beets.
For vinaigrette, combine orange juice, vinegar, mustard, olive paste, and any collected citrus juices in small bowl. Gradually whisk in 1 1/2 tablespoons oil until combined. Season with salt and pepper.
To serve, arrange lettuces on platter. Arrange with onion slices. Add kumquats, radishes, and parsley to beet mixture. Drizzle with vinaigrette; toss. Arrange beet mixture over lettuce and onions.
Substitute Belgian endive and escarole if you canâ€™t find the lettuces listed below.
The 4 pixie tangerines or clementines can be replaced with 2 tangerines.