Preheat your oven to 350 degrees F. Line 1 or 2 baking trays with parchment paper and set aside (I fit all the cookies on 1 large tray).
Using a food processor, blend the walnuts and only 1 cup of the oats until it is fine, but completely fine like a flour. Transfer the mixture to large a bowl.
Add the rest of the oats, the flour, baking soda, cinnamon, and salt and mix to combine. Set aside.
In a separate bowl, mix together the maple syrup, coconut sugar, aquafaba, milk, and vanilla extract until well combined.
Add the liquid to the dry ingredient and mix them together. Fold in the chocolate chips, raisins, and pumpkin seeds.
Form the dough into cookies and line them on the baking tray. Bake on the center rack of your oven for about 15 minutes until the bottoms are golden.
Remove them from the oven and cool before serving.