Oh, I wish I had that particular problem. This pack will eat anything that doesn't eat them FIRST.
Since your baby is pretty young, I wouldn't worry about it - most treats are not that good for them anyway.
If you're looking for training treats - there are a couple of things that some trainers recommend. When I was using clicker training for Romeo and Chloe when they were puppies, I used Cheerios - it's not the size of the treat, but the idea of a reward. I still use Cheerios as treats for training sessions mine. Another suggestion from trainers is string cheese - or hot dogs sliced in VERY thin slices. At night I'll cut up a hot dog or a piece of string cheese into thin slices, and use that as incentive for the pack to go to bed. The younger girls run right into their little house for their treat, their dad runs to his little house for his treat, and the ones who sleep in the family room come downstairs willingly. One hot dog or piece of cheese split 9 ways isn't a LOT of extra calories for anyone, and I've never met a dog yet who doesn't love cheese. I actually prefer cheese to hot dogs, too many preservatives in hot dogs, but when I can buy a package of hot dogs for 99 cents and it'll last a week for 9 dogs, that's pretty good.
But your baby will live nicely without a lot of extra treats - and probably be healthier for it.