In a shallow baking dish, mix the lemon peel and juice, oregano and pepper.
Pierce the chicken breasts on both sides with a fork.
Marinate in the lemon mixture for 30 minutes on each side, in the refrigerator.
Broil chicken breasts 3 inches from heat until done, approximately 20-30 minutes, turning once.
* Percent Daily Values are based on a 2,000 calorie diet. Your daily value may be higher or lower depending on your calorie needs.