Since it is against t the federal law to give away WIC food I think you are doing some good things. I looked at your profile, I assume you're not still one child and one on the way...lol since this little one is eating baby food.
I think that as the baby gets older their taste buds will change. They will eventually like meat but it will most likely be beyond the date I would use it at all.
I suggest you make soups and stews then add a couple of the jars of baby food to the broth to make it richer and more savory. You can always add them to the actual foods too. Like if you make Sweet Potato Casserole for Thanksgiving you could use a couple of the jars of Sweet Potatoes in it instead of milk or some other fluid to make it creamy.
I know that the guidelines are very strict about how WIC items can be used but if you truly don't need them you don't have to take them. I think that if you simply fill the other items and don't use that voucher for the baby food then you just lose that food. You can talk to the health department too and find out if there is any way to use the items. They often have the meetings you go to before getting the vouchers where they give recipes and instructions on using new items.
They could be a great resource.
As far as I can tell by your previous questions and profile your kids are about 4 and almost 1. So your vouchers will change drastically once the baby turns 1 year old. Then it will be the regular whole milk, cheese, peanut butter, eggs, dry cereal, fresh fruit or veggies, bread, whole grain stuff, all sorts of new things. So it will be very different in a couple of months.
Baby food has very very very little nutrition in it to start with and then the jar and lights they are exposed to even just sitting in their jar deletes even more of the nutrients out of them. So throwing them away might even be an option to me. I called either Del Monte or Gerber about some stage 3 baby food a friend had given me. It was out of date by a week or two at most. The person who I was talking to told me it was not any good, there were no nutrients left in it, that is was basically flavored goo at this point.
I asked her why and she told me that baby food is only to be a tool to teach a baby to chew and swallow, not for nutrition purposes. Mom's are supposed to feed their babies breast milk or formula first and foremost the entire first year. It is complete nutrition and they don't really need anything else.
The baby food industry gets wealthy off parents who think their babies need to eat a ton of baby food then they give the formula or breast milk when the babies are thirsty or want to suck. It's backwards. They need the formula or breast milk first then the eat a few bites of food.
Your baby is old enough at 11 or 12 months to go to table food primarily instead of baby food at all. I just wouldn't get any more of it. If you have another 3 months of infant WIC just tell the worker you have enough baby food and don't need that voucher anymore, they may have a substitute item that you'd be able to use more.