Easy Chicken Lo Mein

Name: Easy Chicken Lo Mein
Ingredients: 16 oz. spaghetti; 3 tablespoons olive oil (divided); 4 pieces chicken breast (boneless skinless - cut into 1/2 slices); 2 tablespoons vegetable oil; 1 cup chicken broth; 1/4 cup soy sauce; 2 tablespoons brown sugar; 2 tablespoons rice vinegar; 1 tablespoon olive oil; 2 tablespoons cornstarch; 1 tablespoon freshly ground ginger (or 1 teaspoon ground ginger); 1/2 teaspoon freshly ground black pepper; 1/4 teaspoon red pepper flakes; 1 cup onion (chopped); 2 cloves garlic (minced); 2 cups cabbages (shredded); 16 oz frozen stir-fry vegetable blend (thawed in microwave)