Preheat oven to 375 degrees. Clean beets and remove greens. Clean and chop greens, dry and set aside in a large bowl in the refrigerator (depending on how many greens are attached to your beets, you may want to use all or only half for the salad). Place cleaned beets onto a large piece of foil. Drizzle with olive oil and sprinkle with salt. Fold up sides of foil to cover beets, crimping the sides closed with your fingers. Make sure to close foil up well to preserve the oil and juice for dressing. Roast for 60-90 minutes until tender.
Remove beets from oven to cool. Once cool enough to handle, use your hands to peel skin from the beets. Make sure to preserve oil and juice from beets in a large bowl. Dice beets and add to the bowl of beet greens.
For the dressing: in the bowl that has the leftover oil and juice from the roasted beets, add tangerine zest and juice. Whisk in cider vinegar, mustard, salt and pepper until mixed. In a thin, steady stream, whisk in olive oil until vinaigrette is blended. Stir in chives.
Toss beet greens and diced beets with dressing. Top with golden raisins and crumbled goat cheese.