Preheat large saute pan on medium-high for 2 minutes. Season both sides of chicken with salt and pepper.
Place oil in pan; swirl to coat. Arrange chicken in pan and cook 3-4 minutes on one side or until lightly browned.
Turn chicken and add remaining ingredients to pan (except cheese). Cover and cook 4-5 minutes or until internal temperature of chicken reaches 165 degrees. Meanwhile, slice mozzarella thinly.
Remove pan from heat. Top chicken with cheese slices; cover and let stand 2-3 minutes or until cheese melts. Serve.