Lemony Spinach-Stuffed Chicken Breasts for Two Recipe

In a small skillet, cook onion in 1 teaspoon oil over medium heat for 10-15 minutes or until onion is golden brown, stirring frequently. Add the spinach, garlic and vinegar; cook 1 minute longer. Remove from the heat; cool for 5 minutes. Stir in the cheese, lemon peel, salt and pepper. Flatten chicken to 1/4-in. thickness. Spread spinach mixture over chicken. Roll up and secure with toothpicks. In a small skillet over medium heat, cook chicken in remaining oil for 8-10 minutes on each side or until chicken juices run clear. Discard toothpicks. Yield: 2 servings.