In a food processor, mix the dates, walnuts, oatmeal and cashew meal until ground together.
Add maple syrup, salt and mix until it forms a dough.
Line a 9x9 pan with parchment paper.
Pour the dough into the pan and smooth it out with a spatula or small rolling pin.
Create a double boiler by bringing water to boil in a small pan and placing a heat-proof bowl that is slightly larger than the pan over it. Pour the chocolate chips into the bowl and stir until completely melted.
Once the chocolate is melted, pour over the cookie layer in the pan.Slightly shift the pan back and forth on the counter. This will help you achieve a smooth chocolate layer.
Place the pan in the refrigerator or freezer until completely hardened.
Remove the protein bars by pulling on the sides of the parchment paper. Cut into squares or bars and serve.