I have a 5-6mo old beardie & he's gotten to the point where he only eats his veggies well if I hand feed him. He used to clean out the veggie bowl on his own but not anymore. I feed him a few bites, put the bowl by him to finish the rest on his own, & he literally glares at me like I've offended him! He's gaining weight & growing well but I want him to go back to eating them on his own. Any suggestions??