To prepare mole, heat oil in a Dutch oven over medium-high heat. Add onion; sauté 5 minutes or until tender. Add garlic; cook 1 minute. Add 1/2 cup broth, tomatoes, and next 10 ingredients (tomatoes through tortilla); cook 5 minutes, stirring occasionally. Pour mole mixture into blender; process until smooth. Pour into pan. Add 1/2 cup broth and chocolate; bring to a boil. Cover, reduce heat, and simmer 45 minutes, stirring occasionally.
Preheat oven to 350°.
Place chicken in a 13 x 9-inch baking dish coated with cooking spray. Spread mole over chicken. Cover and bake at 350° for 40 minutes or until chicken is done.
To prepare rice, combine rice, salt, and cilantro in a large bowl.