Beardie Not Eating Greens

[Jacknife]

Hey guys, got a little dilemma.
It's been about 3 weeks now since I bought a 3 year old male CBD, and he still won't touch his greens.
He's eating his crickets like a fiend every day, and I dust with calcium every second day and vitamins twice a week(because he's not eating greens)
I'm really stumped as to what to do still. I've tried coz lettuce, bok choy, grapes, squash, butternut pumpkin, snow peas and cucumber so far as his old owners stated he was a fussy eater, and had only ever eaten these things his whole life.
Is there anything else I should try, and is it detrimental to his health to not eat his greens for an extended period of time even with his calcium and vitamins added to crickets?

His temps and tank setup are fine, a 4x2x2 with a 43-45 degree basking spot, 35+ish warm end and 28-30 cool end.
He spends a few hours a day roaming 'free range' around the house as he has his whole life, and I know that a new environment can affect them but he should really be back feeding normally by now I would think...

Any ideas anyone?

 

[treeofgreen]

Hmmm... seems to be a fussy one lol.

My 2 LOOOOVE coriander and parsley (fresh obviously)... if thats mixed in with their other greens they will eat em all. Mine also really love kale. One LOVES strawberry and the others runs away from it....lol. One loves capsicum and the other wont eat from the bowl if its mixed in.... i think they just like being pains in the *** Makes me love them more haha

Ooo and dandylion flowers aswell... SMASH em

Just keep offering each day, he will eat it if he wants to

 

[treeofgreen]

Edit: You setup sounds perfect btw, i doubt it would be that at all