Kale, Sweet Potato and Orzo Soup

Ingredients:
6 cups of chicken or vegetable stock
2 cups water
1/2 lb of kale, stalks cut off, and leaves chopped into 1/2 inch pieces
2 sweet potatoes, peeled and diced into 1/2 inch pieces
1/2 cup orzo or any small pasta
fresh ground black pepper, to taste
parmesan cheese, for serving (optional)

~ Put the stock, water, kale, and sweet potatoes in a dutch oven, and bring to a boil. Reduce heat, cover and simmer until the potatoes are tender when pierced by a fork, 15-20 minutes. Add orzo or small pasta when the potatoes are almost done. When orzo or pasta is completely cooked, season with the soup pepper.
Serve hot or warm with grated parmesan cheese.