hey. if i am understanding you correctly, i don't think you have a thing to worry about with the hole. since baby food is so mushy, it doesn't require chewing. so, it would collect until he swallows.
you know, one of the things that we didn't cover. sorry, i'm trying to be there for you, but i have a 12 month old, a 1 month old and a 17 year old dog that is not doing well since yesterday.
anyway, timing of lights and such is very important with beardies. it is recommended for them to have lights on for 14 hours and off for 10. it should be total darkness at night. in other words, no need for a night bulb. and the time of day should be consistant. you can get a timer for a couple of bucks. it will help you out a bunch. it relieved a lot of stress for us when we purchased ours.
for example, our lights come on at 7AM and go off at 9PM.
the other thing that is important is that beardies need to warm up before they eat. so, you should wait to feed him about 30 minutes after the lights come on.
and they should not eat 30 minutes prior to the lights going off. this will allow proper digestion before night.
also, night temps can dip down to 65F. if it is cooler, you can try a heatometer. we use ours in the winter.
these guys are cute and they get to you real quick. it's good you are handling him. they are squeamish as babies. they think everyone is a predator. but he'll bond with you. it's sounds like he is getting comfy in his new home! that is awesome.