In a Dutch oven over medium-high heat, cook and stir the chicken, peppers and onion in oil until vegetables are crisp-tender. Stir in the water, corn, rice, enchilada sauce, chiles and salt. Bring to a boil. Reduce heat; cover and simmer until rice is tender, 35-40 minutes., Remove from the heat. Stir in cheese and sour cream until cheese is melted. Serve with chips and chives if desired.