I used to keep a bowl of mealies in with em but for the last 2 years they wont look at em...they dont even like crickets anymore , all they will eat on a regular basis is medium hoppers (locusts) and phoenix worms they love waxies but i only buy a tub of them once every couple months of so , as a few people i know has had there leos get addicted to them and have had a hell of a time getting them to eat something else so i tend to get wax worms as a treat once in a blue moon.
I also give them a pinkie mouse each every now and then as a treat and i up pinkies a little when there breeding, but yeah its such a funny sight seeing them lined up in a row side by side waiting for the grub lol