Cinnamon Roll Banana Bread

butter, at room temperature, plus more for greasing the pan

sugar

large eggs, at room temperature

+ ¾ cups all-purpose flour

baking soda

salt

mashed banana (very ripe!)

Greek yogurt or sour cream

vanilla

packed brown sugar

+ ½ tablespoons ground cinnamon

all-purpose flour

cream cheese, softened

confectioners' sugar

vanilla