Your baby is so adorable. It would probably be better to have set times, so this way you know what she is eating and when.
When one of mine becomes finiky...I resort to hand feeding...usually as pups and then they learn to eat on their own.
Even if you leave out early in the morn....feed her then....and then pick it up....and then do the same once you get home....if it's left out all day she may loose interest.
My two love green beans mixed in with their kibble...maybe try that...or some pears sliced up, mixed in it.
It's a worry I know.