This glowing green smoothie is the perfect immunity-boosting drink with a sweet tart flavor starring green apple, loads of spinach, and protein-packed nuts.
Core the apple and cut it into chunks, leaving the skin on.
Place all ingredients a blender and blend. Add the lemon juice and blend for a few seconds again. Taste, and add a touch more maple syrup and/or lemon juice as desired. Serve immediately, or refrigerate for up to 1 day.