I think it may be a few days before they fully absorb their yoke sacks , as newly hatched reptiles have some left over yoke inside their bodies and sometime attached to them that provides food for them for a little while after hatching, once they have consumed / absorbed it completely they'll be ready to eat suitable sized live insects.
I'd offer :
-- very small gut loaded /dusted crickets or roaches
-- BSF maggots
-- small silkworms
at least three times per day as many as they will eat in a 20minute sitting.
You can offer grated carrot, grated sweet potato, finely cut greens such as buk choi daily, but it is much more important to get them eating LOTS of bugs as they need the insect proteins MUCH MORE than they need greens and veg at such a young age.