My most important advice for making this smoothie super fast? Use a mason jar instead of the entire blender. Most blenders are made where the blade can be detached from the pitcher; and if it's the typical narrow-based, round blenders, then it will fit perfectly on a mason jar. This way, you're making the smoothie straight in what you're going to drink it out of!
1. Throw in 1 frozen banana (peel & break it up before freezing it).
2. Fill the rest of the jar with a handful of spinach.
3. Add a little bit of almond milk (fill the jar about an inch).
4. Fill the jar halfway with water.
If it's too banana-y for you (which sometimes it is), I like to throw in some strawberries or blueberries to add other flavors. And if it isn't blending enough, just add more water--sometimes it needs more depending on how much spinach you use.
I'll try some more elaborate recipes soon and post about it!