Well, I am a snake guy mostly, and They are easier to feed. Needing to make a salad everyday for a dragon, it's just easier if you incorporate it with food you actually eat yourself. Dragons do best with variety, and keeping 3 - 6 vegetables in your house just to feed a dragon properly is kind of silly really. There are allot of good things for a dragon to eat, so pick a few you like, or someone in your family likes, too.
I'll take a pic of the actual dragon salad sometime, but cold uncooked turnip greens and mustard greens, with minced raw butternut squash and mango doesn't really sound that good...