Breakfast smoothies that keep you full till lunch

I have limited time for breakfast in the morning, and in order to avoid the drive through bagel place that is oh so convienient, I'm trying to make sure I have something at home/on the way. I love the idea of smoothies, but I'm always hungry by 10 am and never make it till lunch. I don't like the taste of bananas in my smoothies - I've been doing low-fat plain yogurt, frozen fruits, either a splash of juice or milk and sometimes a little honey. I'll probably add flax seed (just haven't gotten any yet), but I'm looking for other suggestions/recipes for ones that will be filling. Thanks!