If you scroll down and read through previous messeges you will get lost of info, this issue has been addressed a lot.
I would try the following things:
1. wiggle the greens around so they look like they are moving, even drag them across the ground like crickets.
2. Offer greens at a time when the beardies would be most hungry. Do not feed them a big meal of crickets and then expect them to want their veggies, lol.
3. Try bright colors...carrots, rose petals, shredded purple cabbage. They seem to prefer things with brighter colors.
4. and above all, be consistant, the more they see them, the more they will eat!!!
I know its a tough process, but almost all beardies can be converted to green lovers with a little patience!!

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1.0 green iguana-Deitrich
1.1 Common Boa-Un-Named, Ursula
1.0 Ball Python-Anabell (go figure!)
1.0 Red Tegu-Uteg
1.0 Albino Cal King-Pig
0.1 Mexican Black King-Morticia
1.1 Bearded Dragons-Unnamed, Hanabil
1.0 Albino San Diego Gopher-Unnamed
0.1 Hermans tort-Esio
1.1 JCP-Milton, Medusa
1.1 Reverse Okeetee Corn-Unnamed
0.1 Snow Corn-Unnamed
1.0 Hypo Okeetee Corn-Unnamed
0.1 Motley Okeetee-Unnamed
1.0 Western Hoggie-Wyrm
0.0.1 Rose Hair Taruntla-Unnamed
2.0 Leopard Geckos-Reptar, Pogo
4.1 cats-Tucker,Poe,Abhib,Emerald, Felicity
0.1 Bullmastiff-Asha