Cook and drain the orzo according to the package directions
While the orzo is cooking, heat the oil in a 12-inch skillet over medium-high heat
Add the chicken and cook until browned, stirring occasionally
Add the sauce and heat to a boil
Reduce the heat to medium-low
Cook for 5 minutes or until the chicken is done
Add the tomatoes and spinach and stir until the spinach is wilted
Stir in 2 tablespoons water
Serve the chicken mixture over the orzo and sprinkle with the cheese
