Hi and welcome to Yorkie Talk!
Congratulation on your new baby.
For picky eater, you can add some water and Chicken/Beef broth flavor to the hard food and let it sit for like 5 min. They love it!!
We love to help each other here, so come back to us with all the questions you may have and you will fund some great answers!!
Also Here is a link to a great site. You will fund answer on there too.