One of the cooler blog trends lately is rise of green smoothies (or green monsters, as so many like to say). The introduction of spinach and kale into everyone’s morning smoothie was one of my favorite blogging developments of the year—and lately I’ve been delighted to see greens appearing in hot breakfast cereals too (thank you, Polly and Heather!). Green smoothies are terrific: full of vitamins, fiber, and an easy, palatable way to get raw greens. But today I’m hoping to ignite some...