COOK chicken in 2 Tbsp. dressing in large nonstick skillet on medium heat 4 min. on each side or until evenly browned.
STIR in broth, garlic powder and remaining dressing; bring to boil. Cover; simmer 5 min or until chicken is done (170ºF). Remove chicken; cover to keep warm.
ADD broccoli to skillet; cook, uncovered, 3 min. Stir in rice and 3 Tbsp. nuts. Remove from heat; cover. Let stand 7 min. Serve chicken over rice; top with remaining nuts.