Place dates, oats, and coconut into a food processor, blending until you reach a thick, grainy consistency. Ensure the ingredients are well combined and sticky.
Press the mixture into parchment-lined muffin cups, forming the base.
In the same processor, blend the bananas, protein powder, vanilla, and non-dairy milk until smooth and creamy.
Evenly distribute this filling over the prepared base, filling each cup to the top.
Freeze for a few hours until set, then add whipped cream on top.
Store the pies in an airtight container in the freezer. Thaw slightly before serving for the best texture.