She wrote three songs which appeared on Linda Ronstadt’s Hasten Down the Wind album way back in 1976, but she’s also a singer in her own right. She, Kenny Edwards, Andrew Gold and Wendy Waldman formed Bryndle and released several albums over its life. All four were (Gold and Edwards died several years ago) and are solo artists of note.
Here’s Bonoff singing one of her more famous songs.
If you like that you should hunt up her other albums.