Add all ingredients to the blender (mango, sugar, juice from ½ a lime and water). Blend until smooth.
Pour into your Ninja Creami container, using a spatula to scrape the mango puree out the blender.
Freeze for at least 18 hours on a level surface in your freezer.
Remove from the freezer and process on the sorbet setting. Add a splash of water and respin. (If desired, respin another 1-2 times depending on how soft you want your mango sorbet).
Enjoy!
Notes
If needed use a spoon or butter knife to loosen ingredients if they get stuck while blending -- after you turn the blender off of course. You can also add a tiny bit more water if needed.
I always run a little warm/hot water along the outer edge of the container for 30 seconds before processing. It helps the outer layer to thaw. If you're more patient, you can leave out on the counter for 10-15 minutes.
If you have leftovers, smooth out the top and return to the freezer. You will likely need to thaw on the counter or reprocess before enjoying again.
If you want a soft mango sorbet that's still scoopable, respin it a few times before enjoying (I personally like to do 2-3 respins for my mango sorbet, but it may depend on how your freezer settings).