HEAT 1/4 cup dressing in large deep skillet on medium-high heat. Add chicken; cook 3 min. or until lightly browned, stirring occasionally. Remove from skillet; cover to keep warm.
COOK onions in remaining dressing in same skillet 3 min. or until crisp-tender, stirring occasionally. Add potatoes and broth; stir. Bring to boil; cover. Simmer on medium-low heat 8 to 10 min. or until potatoes are tender.
ADD beans, ham, apples and chicken; simmer, covered, 5 min. or until chicken is done. Stir in thyme just before serving.