Ingredients
1/2 cup chopped sweet onion3 teaspoons olive oil, divided6-1/2 cups fresh baby spinach, chopped1 garlic clove, minced1 tablespoon balsamic vinegar1/4 cup crumbled feta cheese1/2 teaspoon grated lemon zest1/4 teaspoon salt1/4 teaspoon pepper4 boneless skinless chicken breast halves (6 ounces each)
Preparation
In a large skillet, cook onion in 2 teaspoons oil over medium heat for 15-20 minutes or until golden brown, stirring frequently. Add the spinach, garlic and vinegar; cook until spinach is wilted. Remove from the heat; cool for 5 minutes. Stir in the cheese, lemon zest, salt and pepper.
Flatten chicken to 1/4-in. thickness. Spread spinach mixture over chicken. Roll up and secure with toothpicks.
In a large skillet over medium heat, cook chicken in remaining oil for 8-10 minutes on each side or until a thermometer reads 170°. Discard toothpicks.
