Bring first 3 ingredients to a boil in a Dutch oven. Cover, reduce heat, and simmer 45 minutes or until lentils are tender.
Stir in brown sugar and next 4 ingredients. Spoon mixture into a 1-quart baking dish coated with cooking spray.
Bake, uncovered, at 325°, stirring occasionally, for 1 hour and 15 minutes.