If you add some milk powder to the ingredients, the taste will be softer.
2. You can also add other fruit ingredients you like, such as raisins.
3. The amount of bananas can be increased, but you should add some oats.
4. You can pour the no-cooking oats directly. After mixing, you can put it in the fresh-keeping room for a while to let the yogurt soften it, or you can put it directly in the freezer to let it slowly absorb the moisture of the yogurt.