I think she will have hard time to get job with certificates of a training institutes, so i suggest she enrolled in proper higher education institute whereever she is (Axum or Addis, i guess)Â there are both private and governmental institute she can enroll in.
Accounting is markatable, she can get job easily if she earn preferably a degree than diploma. however, if cooking is her interest. yes, there might be an opportunity to be hired but it may require her lots of practices and free services. if fund is available may be advise her to study that in part time.
hope it helps,