Cauliflower Soup

Ingredients

• 1 medium white onion, chopped
• 1 stalk celery, chopped
• 2 carrots, peeled and chopped
• 1 head cauliflower, chopped
• 2 medium potatoes, chopped
• 3 chicken legs
• 4 cups water
• 1 tbsp low fat sour cream
• 2 tbsp flour