Savory Beet Soup - Guiding Stars

Ingredients

• 1 cup chopped onion
• 4 cups fat-free, low-sodium vegetable broth
• 2 cups water
• ½ tsp. salt
• ¼ tsp. freshly ground black pepper
• 3 medium beets, peeled and halved
• 1 medium potato, peeled and halved crosswise
• 1 bay leaf
• 1 tsp. lemon juice
• 8 tsp. reduced-fat sour cream