Hornworms are good but can cause a nasty runny poo, more work for you and nasty to boot. Mix them in with some less "mushy" creatures such as a dubia colony. The dubia are the easiest thing I have ever done for my dragons hands down, they live in a box in the closet and eat leftovers like apple cores carrots potatos w/e. I'm an avid Dubia pusher, get them they are awesome.