1 cup yogurt
1 banana, broken into chunks
1/2 cup frozen blueberries
4 cups fresh spinach
1 tablespoon water, or as desired (optional)
2 ice cubes, or as desired (optional)
Layer yogurt, banana, and blueberries in a blender, respectively. Add as much spinach to blender that will fit; pour in water. Blend on high speed until smooth, adding the remaining spinach if needed. Add ice for a colder and thicker smoothie. Add more water for a thinner smoothie.