My Lily eats Wellness too, but she loves it. I also switched her from Science Diet.

She REALLY, REALLY loves the Wellness canned puppy food. Sometimes I give her a tablespoon or so mixed in with the dry as a little treat. You could try that too.
Also wondering: How much do you feed your little one? Lily is about 2.6 pounds at almost 9 weeks, but I haven't quite figured out how much she should be eating daily yet. I've just been feeding her three times a day until she stops eating. Which isn't much.