Thanks guys. I can try freezing but don't normally make a large enough batch to make it worth it. Maybe just puree a whole banana and put it in the fridge and use it within 24 hours? In a tupperware, of course...
Also, we do some homemade food, some jarred. Bananas only fresh, never jarred. But any clue how much fresh banana mashed or pureed with a bit of water would equal 2.5 ounce jar? Just curious how much she is eating...