In a Dutch oven, heat oil over medium-high heat. Sprinkle chicken with pepper and salt. Brown chicken in batches; return all to pan. Add the sweet potatoes, salsa, nectarines and seasoning. Bring to a boil; reduce heat. Cover and simmer until potatoes are almost tender, about 15 minutes., Stir in rice and water; bring to a boil. Reduce heat. Cover and simmer until potatoes are tender, about 10 minutes. Stir in parsley. Serve in bowls; sprinkle with chives.