Combine oatmeal and protein powder in a large bowl and mix well.
Finely chop cacao powder, nuts, and dark chocolate, then add them in.
Pour in unsweetened almond milk and honey (or stevia), and mix until the dough comes together.
Place the dough into a pan lined with parchment paper and press it flat.
Refrigerate for at least 1 hour until firm.
Cut into bite-sized bars.