Place the cottage cheese, strawberries, sweetener, and vanilla extract into a high-speed blender.

Process until the mixture is completely smooth and no cottage cheese curds remain.

Pour the mixture into a Ninja Creami pint container, ensuring it does not exceed the maximum fill line.

Place the lid on the pint and freeze on a level surface for at least 24 hours until solid.

Remove the pint from the freezer and take off the lid.

Place the pint into the Ninja Creami outer bowl and lock the lid with the paddle attached.

Select the 'Lite Ice Cream' program and allow the cycle to finish.

If the texture is crumbly, add 1 tablespoon of milk and select the 'Re-spin' function.