Sometimes they just get picky like that. My friends beardie goes off veggies every single winter for no apparent reason.
Continue offering greens, you can try spicing it up with different veggies. What do her salads usually consist of? Maybe she is just bored with those...try yummy tasting things like carrots, squash, bell peppers, clover, sweet clover, and berries.
She could also be gravid, although i *think* its a little late in the season for that, if she is gravid or going through a reproductive cycle she may be trying to cram herself with protein.
if you are looking for different feeder insects try silkworms, they are nutritionally the best!
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0.1 Bearded dragon (Hannabil)
0.1 mexican Black kingsnake (Morticia)
1.1.2 Leopard Gecko's (Pogo, Louise, Orion, Jeffrey Nothing)
0.0.1 Tokay Gecko
1.0 Blue Tongue Skink
0.0.1 Reverse Okeetee Corn (Autumn)
0.1 Bullmastiff (Asha)
4.1 Cats (Poe, Tucker, Abhid, Felicity, Emmy)