Preheat oven to 350°. In a Dutch oven, cook bacon over medium heat until crisp, stirring occasionally. Remove with a slotted spoon; drain on paper towels. Discard drippings, reserving 2 tablespoons in pan., Add onion to drippings; cook and stir over medium heat 6-8 minutes or until tender. Add garlic; cook 1 minute longer. Stir in beans, tomato sauce, green chiles, brown sugar and seasonings. Sprinkle top with bacon. Bake, covered, 60-70 minutes or until heated through.