Solution: vegetable smoothie. Ice, a banana, yogurt, milk, and a whole bunch of spinach, in proportions according to taste. This sounds disgusting, but it actually tastes really good. Make sure you have a banana though. Otherwise it will tastes like spinach, and that's not the goal here.
After trying to report my discovery to the world, it seems I'm the only person who thinks spinach smoothies are a good idea. For some reason, everyone thinks it's disgusting to fill a blender with spinach and other things and then drink it. I can't imagine why.