I don't know anything about a bearded dragon, but what is wrong with it eating vegetables? My puppy likes veggies a lot better than meat, and he likes them raw. He eats carrots, lettuce,cabbage,raw potatoes and he likes about everything crunchy except pop corn.He also likes fruits but can't have some of the forbidden ones.Does he go to the vet? Ask him about the diet of vegetables for a while.I don't what fruits and vegetables are forbidden, then keep those away from him.I bet he will eat insects when he gets a desire for them again. Don't worry about it.
