2 egg whites. More protein.
1/2 cup wheat bran. Or psyllium husks. What can I say? I'm a fiber freak. By the way, this affects the taste of the shake much more all the green stuff. If you don't like a grainy texture to your shake you might want to scale back on the bran.
By now with all the fruits and veggies and powders in there, my shake is a little dry. A lot of mornings I'll thin it out with crushed ice, but it was colder than a hag's areola this a.m. so I used some leftover cold tea.
Delicious and very filling.