Need help with a stubborn feeder

[burmer]

Hey I wanted to see if someone could give me some advice on a stubborn feeder. I've had my male dragon since he was a baby. He is two years old. He eats ok but wont' eat many different things. The only thing he will eat regularly is meal worms. Crickets he might eat 2 or 3 out of a dozen. Veggies once in a while. He does like pinkies alot, but I don't give them to him very much. The veggies I usually give him are mustard greens, collards, dandelion greens when I can get them. He is fat and looks good and is healthy. I just wanted to get a bigger variety of food into him.