Using homemade or store-bought hazelnut milk, pour milk into a bowl or jar with a tight lid.
Add the oats you are using and the chopped strawberries, blueberries, vanilla extract, cinnamon and nutmeg.
Put on the lid and shake. Put the bowl or jar in the refrigerator overnight.
When ready to eat, remove from the refrigerator and mix in the spinach and top the oats with strawberries and blueberries for garnish.
