Cook bacon in a Dutch oven over medium-high heat until crisp. Remove bacon from pan, reserving drippings in pan. Crumble bacon; set aside. Add onion and garlic to drippings in pan; cook over medium heat 5 minutes or until tender, stirring occasionally. Stir in crumbled bacon, 2 cups water, and next 4 ingredients (through pepper). Gradually add greens. Cover, reduce heat, and simmer 1 hour or until tender.