I make green smoothies. I just blend together frozen fruit, usually blueberries because they mask the green, with some yogurt or milk, a few ice cubes, some orange juice (gives it a little zip) and a couple of handfuls of spinach. They have never noticed the spinach.
I've even added protein powder the mix.
I was so surprised at how much spinach I could add to a blender and not have the kids even notice. (Of course, stuffing the spinach into the blender without anybody noticing can be challenging. :001_smile:)