Meanwhile, heat dressing in large saucepan on medium heat. Add onions and garlic; cook 5 min. or until onions are crisp-tender, stirring occasionally. Add cumin; cook and stir 1 min. Stir in all remaining ingredients except cilantro and cheese; bring to boil. Simmer on medium-low heat 10 min., stirring occasionally. Stir in cilantro.