For the salad, rinse the beets well and peel. Julienne the beets and marinate in vinegar in a glass bowl. (beets will stain plastic). Peel and dice the onion and combine with the beets.
Rinse the lettuce, shake dry and salt lightly. Line a glass bowl with the lettuce leaves. Rinse the dill, shake dry and chop finely.
For the dressing, combine the yogurt, sour cream and whipping cream. Season with salt, pepper and instant broth. Spoon the beets and onions into the lettuce bowl. Drizzle with dressing and serve sprinkled with dill.