In a large saucepan heat olive oil over medium high heat. Add carrots, celery, onion and minced garlic; sauté about 5 minutes or until vegetables are tender, stirring occasionally. Stir in chicken broth, chicken, noodles, seasoned salt, dry mustard, chili powder and pepper. Bring to boil, reduce heat and cover. Simmer for 6 minutes or until noodles are tender.