If there are no other additives that sounds like very good stuff! All the better if he is eating it. Good for you!!
Do keep trying with the fresh veggies tho. Like illusive said, try different ways and be persistent.
Eating or pretending to eat the veggies in front of them is a good way too. They are usually sooo curious about what WE are eating they just have to give it a try themselves eventually.
Mine love crushed red pepper too and it's good for them. try adding a pinch to his seed cup.
You can also get carrot or beet powder here
http://www.myspicesage.com/beet-powder-p-481.html?cPath=1along with lots of other excellent fresh herbs n spices. Just put what you are looking for in the search bar.
Powders are a good, albeit sneaky lol, way of getting some veggies in to those picky eaters.
Good job Romeo eating your Bird Greens!!! Way to go!

Never give up on the fresh tho