Heat olive oil in a large saucepan over medium-high heat. Add carrots, celery, onion, ginger and garlic; cook 5 minutes, stirring constantly, or until onions are softened.
Add broth and chicken; bring to a boil. Reduce heat to low; cover and simmer 5 minutes. Add noodles. Cover and simmer 10 to 12 minutes or until noodles are tender. Stir in lemon juice, parsley and peas, if desired. Season to taste with salt and pepper.