Have you tried putting a little bit of hot water over her food? If you leave it to soak for a bit (it obviously needs to cool down a bit before you give her it), it can make a kind of gravy and can sometimes tempt dogs to eat the kibble if they aren't too keen. I had to do this when mine were teething as it obviously softens the texture of the kibble.
For treats, mine love Primula cheese, pieces of hot dog, liver cake, Harringtons training treats (they also do a bag of puppy treats)& fish4dogs training treats.