I know what you mean. But hard to replicate their natural diet in a captive environment. Cats eat similar things to bts.
Live food is best but expensive and not really needed for these imo. I had 14 young skinks last year that i raised mainly on crickets and roaches. They were unbeleavbly fast. Id never seen bts move so fast and they thrived on them. But as they got older they became less interested. Maybe i gave them too much cat food and they just became lazy i dunno.
My female skink i had was eating live food like a nutter over summer, up until she gave birth. Then seemed to loose interest in them. Maybe i just gave her too much other food when trying to fatten her up again.
Like i said though they are scavengers, so i guess they feed on all sorts. Skinks, lizards, rats & mice, birds, snails and a large part of the diet is carrion/dead animals in the wild. Catfood replaces the carrion. Theyre not like beardies whom pretty much need live food.
Cant go wrong with live food. But with all that leaf litter i wouldnt go there with crickets, they will just hide. Could hand feed them i guess. Locusts maybe ok but theyre very jumpy, cant say i tried them with bts.
I dunno im no expert i just did what works...