I want to learn now pie fillings

I've been baking for a few years and have learned to make nice hand pies with a taffertty dough recipe I found some time go. Making apple pie filling is nice enough but I wanted to know if there are any other pie filling recipies that uses banana or sweet potatoes.

I kind of like it when the filling still has a texture to it the way apple slices hold their shape. Does anyone know of a way to what i have in mind?

I'm thinking of just steaming the sweet potato a bit first before gently cooking it with a bit of butter and sugar then add a slurry to thicken it. As for the banana, maybe just tossing the slices of banana with some sugar and call it a day?