Boil a large pot of salted water, add orzo and cook 10-12 minutes or until al dente, then drain; rinse in cold water and add to large bowl
Heat lightly oiled skillet over medium-high heat; pat chicken breasts dry and sear 2 minutes per side until warmed through, then slice into bite-size pieces; add to orzo
Wash and slice tomatoes in half; add tomatoes, olives, and ½ container of sauce to orzo; toss to combine and season with salt and pepper
Divide between plates and serve