To a large bowl, combine the oats, peanut butter, and maple syrup. Mix them well (it helps if you use your hands).
Grab a muffin pan and lightly grease six muffin holes with coconut oil. This is an important step as this will help you get the granola cups out much easier.
Split the granola filling evenly between the six muffin holes.
Next, use your fingers or a spoon to shape the granola into little cups, forming a hollow middle.
Bake the granola cups in the oven for 20 minutes at 350*F/ 175*C.
Give the cups at least 30 minutes to cool off before removing them from the muffin pan. Otherwise they might fall apart.
When they are ready to be removed from the muffin pan, gently slide a butter knife or a fork along the edges of the cups, to loosen them.
Take out the granola cups, fill them with yogurt and add sliced fruit on top.