I've never tried a mango before (other than in a cooler), but saw her make this smoothie the other day and went mango shopping. It's really really good!!
1 cup milk
1 cup vanilla yogurt
1 cup ice cubes
Peel mangoes and cut into cubes; place in blender. Peel banana and break into chunks; add to blender. Add milk, yogurt and ice; blend until smooth.
I do 1/2 a recipe - since I'm the only one who likes smoothies. I would suggest that you blend the mango first quite well so the smoothie doesn't have quite as much pulp - unless you like pulp.
Going to try it with Strawberries instead of the mango - that would be really yummy too!