Heat the olive oil over medium-high heat. Add the chicken in a single layer and cook for 3-4 minutes until browned. Flip and cook on the other side until lightly browned and just cooked through. Remove from pan and set aside.
Add the orzo. Stir well and cover. Cook for 5 minutes. Open and continue to cook until the orzo is al dente, about 3-5 minutes. Stir often so that the orzo doesn't stick together. There should still be some chicken broth in the pan.