When I make a green fruit smoothie (a few times a week, but really should be more often as a breakfast) I add chia or flax seeds, lots of baby spinach or spring mix, 1/4 to 1/2 avocado (really makes it creamy), banana, orange, and 2 other types of fruit (blueberries, peaches, strawberries, etc). I buy some of my fruit frozen and just toss it right in. I pack a lot in and usually fulfill my daily fruit quota with the smoothie.
I either use a little water or almond milk.
It makes a ton so I space it out throughout the day. I have even left some for the next morning and it seemed to keep well overnight. I wouldn't recommend longer than that.
My boyfriend likes to add D-Ribose for an energy kick.