Banana Cake for dessert

Most Tuesdays I make a big effort to cook a low fat healthy option for dinner followed by a low fat healthy option for dessert.  It's become a routine that has continued for over two years (I can't remember the exact date we started).  Anyway, it began because of a traumatic event, but has continued.  The routine goes like this: Alan comes over for dinner cooked by me, and he brings dessert prepared by him.  At the beginning we used to both be quite experimental about our "low fat" options, but now we tend to prepare the same things (rotate them).  I guess we both have favourites - or at least know what everyone's favourites are!  Tonight Ian cooked dinner - seeing he is on leave - and we had BBQ'ed salmon with salad.  Yummy.  We topped it off with Banana Cake with icing topped with lime zest.  Yummy.  Yummy.  Alan generally stays at our place for a little while - often fixing something (generally computer based!!).  I'm really grateful for our Tuesday routine, Alan's friendship and Banana Cake (or rice pudding, or strawberry and chocolate muffins, etc).