Thaw acai packets at room temperature for a few minutes until the packaging loosens, then remove and break the frozen contents into pieces.
Add the acai, banana chunks, berries, and peanut butter to the blender.
Secure the lid and start blending on low speed, gradually increasing the speed while using a tamper to incorporate ingredients. Add milk one tablespoon at a time until the mixture reaches a thick, smooth consistency.
Transfer the blended smoothie to a bowl and top with granola, banana slices, fresh fruit, and an optional drizzle of peanut butter.
