If you’re using fresh mango, peel it, slice it off the pit, and cut it into chunks.
Pour the milk into the blender first. Add the yogurt next. Greek yogurt makes the smoothie thicker and adds protein.
Add the mango chunks and the banana. If your mango is super ripe and sweet, you might not need any added sweetener at all.
Add chia seeds if you’re using them and vanilla extract if you want a smoother, softer flavor.
Start blending on low speed for a few seconds, then increase to high. Blend for 30–60 seconds until the smoothie looks completely smooth.
Pour into two glasses and serve right away.