You might be surprised at how easy it would be to get her to eat just the dry. I know I was. I have had what seemed to be some finicky eaters now and then and would try all kinds of things sprinkled with the dry to get them to eat. Then for the longest time I also fed them raw medallions going half & half with those & the dry. After getting my 4th dog, I decided the mixture-thing was getting to be a bit much, both in cost & time so I decided we were going to strictly dry kibble. I weaned them off the raw using less & less in their dishes until the last of what I had was gone. I was surprised at how easily they accepted just the kibble!!!
There may have been a meal or two that was picked at or missed off and on for a few days, but that was it.
I think that at 10 months & 6 lbs, your yorkie will be fine if she picks at her food for a day or so. Just watch & make sure she eats even just a little. Sometimes they get bored with the "same ol food", maybe it's time to switch brands or flavors??? Go easy on the treats in between meals too, so that she gets good and hungry. And/or if it's possible, just leave the dish down with her daily amount of kibble available to her all day so she can eat at her will. Good luck to you!