I used the same paleo banana bread recipe from before, once as bread, and once as muffins with various ingredients folded in.
I actually think the recipe shines best in loaf form, but I have always had to bake it considerably longer than the recipe states. My bananas might be bigger than your bananas.
With the muffins, I made some with chocolate chips (definitely not paleo), some with blueberries (still paleo) and some with a cinnamon-splenda streusel mixture that I've been making cinnamon toast with a lot lately, like a crazy person, using sprouted grain bread. Or should that be "bread" in quotation marks, I'm uncertain. The biggest issue with these muffins is that in my rush to not add honey but to substitute it with splenda, I forgot to sweeten them at all. Whoops!