Rinse chicken and pat dry. Cut each thigh into 4 pieces and place on plate. Mix seasonings and sprinkle over chicken.
Place broth, tomatoes, carrots and onion slices in slow cooker. Stir in seasoned chicken; cover.
Cook 8 hours on LOW or 4 hours on HIGH.
Stir in noodles and peas; cover. Cook 15 to 20 minutes on HIGH or until noodles are tender but still firm. Let stand 10 to 15 minutes before serving to allow noodles to absorb the broth.