Add banana, milk, sugar, and vanilla pudding mix to a blender. Blend until combined. Add heavy cream and blend for 10-15 seconds. Pour into Ninja Creami container.
Freeze for at least 24 hours.
Process on ice cream setting.
Top with banana slices, whipped cream, and crushed graham crackers if desired.
Notes
Mixture should come out creamy and delicious once processed. However, if your mixture is crumbly or too hard, respin. If mixture is too soft, add back to the freezer for a bit before scooping.
Want more banana flavor? Swap out the vanilla pudding mix for banana pudding mix.
This recipe can be made in the Ninja Creami or Ninja Creami Deluxe.
If you have leftovers, smooth out the top of the ice cream in the Creami container and return to the freezer.