Add remaining 2 tablespoons oil, the onion and garlic to skillet. Cook and stir 2 to 3 minutes or until softened. Add orzo; cook and stir 2 to 3 minutes or until orzo is lightly toasted. Stir in broth, tomatoes, chick peas, lemon peel, salt and pepper. Heat to boiling; cover, and reduce heat to low. Cook 8 to 10 minutes or until most of liquid has absorbed and orzo is almost tender.