I've never heard of baked banana, but it sounds great.
If I do have a bedtime snack, I'm tempted to go after anything I can find. I like popcorn, graham crackers with butter (or Nutella), a mini candy bar, or a glass of orange juice. Not all on the same night, of course. It all depends on how I have done on my day calorie wise, some nights I have to try to get something extra in for the day. Some days I have to decline the bedtime snack because I was naughty earlier in the day.
Hot chocolate with butterscotch schnaps is always a treat. Helps me sleep too!
"We cannot become who we want to be by staying who we are."