This combo is an old standby, and it combines my favorite smoothie berries: strawberries, blueberries, and raspberries. The chia seeds and almonds make it a bit creamy. I like to include the orange because it’s juicy and cheap. And the baby spinach adds a very mild-tasting green, for the leafy green goodness. You can easily substitute in other mild ingredients (such as apples or carrots). The berries are the major contributor to flavor.
Toss ’em in, blend ’em up. It’s super convenient to use frozen berries because they’re always ready to use. You can get a premixed berry mixture, but I prefer to buy them separately so that I can get more variety in flavor by changing the ratios or leaving out one kind of berry entirely. I used peeled raw soaked almonds, though you can safely use unsoaked raw almonds.