In search of a non-bread recipe for 6 overripe bananas!

Bananas Foster or banana pudding. Banana cookies-like vanilla wafers.

This recipe will use four of 'em: https://food52.com/blog/24924-why-you-should-make-sticky-banana-bars

Yes to Ayanna's idea of ice cream.
Also, breakfast smoothies.
And you could just peel them and freeze them plain, fir future use.

Make granola: https://www.seriouseats.com/recipes/2019/01/banana-granola.html