Hi.
I dont know how recently you got your little girl but it is best to keep them on the same food for a week or two while they are still adjusting to your new home.
Eukanuba really isnt a great food.. there are lots of foods out there that are better.
Some foods that I know people have great success with for picky little yorkies are FROMM, Orijen, and Acana.
I feed California Naturals right now which is a good food for dogs that have some type of sensitivity because they have limited ingredient diets.
Good Luck in your search for the best food for your little ones.