The concern about sugar intake is valid. You can ditch the honey and swap out the cows milk for unsweetened almond milk. But like you said, incremental improvements. No need to over complicate it. If someone is so messed up that they can't handle a small amount of fruit a day, you're either...
Can definitely second the suggestion for the bananas and the protein powder. You can peel the bananas and store them in the freezer. As long as you have a halfway decent blender they work well for a more milkshake like consistency.