Maybe you will need to resort to feeding your beardie puree made from water and high quality insects such as BSF maggots and pupae, silkworms, crickets , or roaches .... do I hear your mom saying "yuk !.... not with my miniprocessor / stick blender" , but do you want your beardie to survive and grow ? or not.
I had experience with a very small juvenile eastern water skink who I had physically rescued from next door's cat (yet they let their cat roam day and night and it was responsible for virtually exterminating the wild skinks, frogs and many wild native birds who were frequent visits to my yard which I'd turned in a safe haven for them since retiring- was heart breaking picking little broken corpses who'd been abandoned by the cat). Lucky (he became my first pet lizard (since childhood) had dropped his tail, lost his left eye (clawed/bitten there) and had a broken left lower jaw. So I had no choice but to give him a liquid diet, as he was unable / unwilling to chew solids (hurt too much).
I squeezed out the innards of mealworm lavae and pupae , and did the same to gut loaded crickets, one at the time, to feed him, very time consuming , very laborious , and very messy , but I thought he was worth the effort.
I gave him liquid calcium (CALCIVET using a syringe with flexible part of a catheter attached to the syringe that I'd insert into the corner of his mouth (just far enough to get into his mouth).
He thrived while he was in my care , but unfortunately he had a major and vey sudden SI relapse after he'd been with me for 9 months and grown his tail back, and grown from 6g to 20g.
Note Lucky's care was vet supervised while I was giving him IM antibiotics and oral antibiotics (for about 4 months) and I was warned he was unlikely to survive the infection that resulted from being bitten/clawed by the cat , the necropsy revealed he had an abscess inside him that was full of germs and hadn't been detected. (Common outcome.)
You may need to do the same for your disabled/sick beardie, there are also commercial products made by respected manufacturers like Repashi , Bug Pie has been used by some , it can be made into a slurry and given by feeding syringe using crop needle (metal needle without a sharp end with a large bore to help with feeding animals orally). Bug Pie and Veggie Burger slurries by Repashi are a much better option for your beardie than baby foods not designed for reptiles.
Also if he's not eating, he's not getting his necessary intake of dietary calcium and vitamins, would be very adviseable to get liquid calcium and reptile specific liquid vitamins.
In the first instance I think your beardie needs to be seen by a reptile vet ASAP , he needs xrays done and maybe bloods to determine what's going in and determine how to treat your beardie, we're all guessing otherwise.
