Place the ripe bananas, frozen berries, peanut butter, and milk into your high-speed blender.
Secure the lid and blend on high for about 30 seconds until the mixture is smooth, thick, and creamy, with no large berry chunks.
Stop the blender and use a spatula to scrape down any sides, ensuring everything is evenly blended.
Pour the smoothie mixture into a bowl; it should be thick and scoopable but not runny.
Top the bowl with your choice of granola, sliced fruit, and a drizzle of honey for added texture and sweetness.
Serve immediately with a spoon, enjoying the bright flavors and creamy texture that make this nostalgic breakfast a delightful treat.