Prep the mango: Peel and finely chop the mango. If using frozen mango, thaw it and dice into small kid-friendly pieces. If your kids prefer smoother texture, mash half the mango.
Mix the base: In a jar or bowl, add oats, milk, yogurt, chia seeds, vanilla, sweetener (if using), and a pinch of salt.
Stir well so the chia doesn’t clump.
Fold in the mango: Stir in most of the mango, saving a spoonful for topping in the morning. This spreads the fruit flavor throughout the oats.
Cover and chill: Seal the jar or cover the bowl. Refrigerate for at least 4 hours, but overnight is best for a creamy, thick texture.
Morning stir: Give the oats a good stir.
If they’re too thick, add a splash more milk until it’s just the way your kids like it.
Top and serve: Add the saved mango on top. Sprinkle coconut or a few mini chocolate chips for fun, or a tiny squeeze of lime to brighten the flavor.