Begin by cutting the mango, pineapple, and banana into small, even cubes to ensure smooth blending. In a blender jar, combine the yogurt, chopped fruits, honey, and a pinch of ground cinnamon. Blend the mixture at medium speed until it becomes creamy and velvety in texture.

Once smooth, pour the lassi into serving glasses and top with a few ice cubes for a refreshing chill. Garnish each glass with a sprig of mint leaves for a pop of color and freshness. Serve immediately for the best flavor and enjoy the naturally sweet, tropical taste of this vibrant mixed fruit lassi.