go to www.livefoods.co.uk
Butterworms, locusts(they seem to love these), superworms(if beardie is 15"+), roaches, just some ordinary meal worms for a bit of a change - mix things up a litle
Don't forget to feed your insects on fresh veg and a protein rich dog biscuits/fish flakes or pellets to make the most of each individual insect!
for a list of suitable things to feed
PM me if you need further help.