Add frozen banana, pineapple, coconut milk, and Greek yogurt to a high-speed blender.
Blend on high until smooth and creamy, about 30 to 60 seconds.
Taste it—if you’d like it sweeter, add a touch of honey or maple syrup.
If you want a thicker texture, add some ice and blend again.
Pour into a glass, garnish with a pineapple wedge or a cherry if you’re feeling festive, and enjoy right away!