Alright, so I'm trying more and more to avoid both sugary and processed foods, so I've decided that I'm going to start making fruit smoothies for breakfast, instead of the granola that I've been living off of. I've been adding frozen bananas, other assorted fresh fruit and some raw sunflower milk. Only... that's not at all filling enough. I'm way hungry two hours later. What else could I add to make it more filling?