Heat oil in a medium saucepan and sauté onion for 2 to 3 minutes. Add all remaining ingredients except for the parsley. Cover, bring to a boil, reduce flame to medium-low and simmer 20 minutes. Place in a serving dish and garnish with parsley.
Per serving - 157 calories, 3 g fat (15% calories from fat), 5 g protein, 28 g carbohydrate, 6 g fiber, 0 mg cholesterol, 209 mg sodium