Have you tried that banana ice cream by just freezing it, then blending it?

I have - agree that it's awesome. It doesn't provide the long-lasting satisfaction of all that fabulous saturated fat in real ice cream, but it's got great texture and flavor and overall
desserty-ness nonetheless.

It taste banana
I ADD a bit of milk to help the blending

Yes, and it's awesome.

totally.. works like a CHARM! (i added a bit of crushed cardamom & saffron) while blending it
https://food52.com/recipes/18742-the-kitchn-s-one-ingredient-ice-cream

I have not however the topic was covered three years ago at Food52 and many who had tried it left comments.

https://food52.com/blog/4309-the-kitchn-s-one-ingredient-ice-cream

Enjoy!