COOK pasta as directed on package, omitting salt.
MEANWHILE, heat oil in large skillet on medium-high heat. Add chicken; cook and stir 4 min. or until done. Remove chicken from skillet; cover to keep warm.
ADD flour to skillet; cook and stir on medium heat 1 min. or until hot and bubbly. Stir in broth, milk and cheese; cook and stir 3 to 5 min. or until thickened.
DRAIN pasta. Add to sauce with chicken; toss to evenly coat.