3 roast root vegetable salad dijon Recipes

sweet potatoes (about 1 1/2 lb.), parsnips (about 1 lb.), beets (about 1 1/2 lb.), olive oil, divided, salt, divided, pepper, divided, bottled olive oil -and-vinegar dressing, chopped fresh parsley, horseradish, dijon mustard, fresh arugula

root vegetables (such as carrots, parsnip, celeriac, swede, sweet potato, small potatoes, shallots, beetroot), caraway seeds, thyme, celery, cut into 2in pieces, garlic cloves, left unpeeled and smashed with the back of a knife, olive oil, flaked sea salt, fresh ground black pepper, parsley, chopped, white wine vinegar, dijon mustard, olive oil, brown sugar