Preheat oven to 360°F (180°C) and line a baking sheet with parchment paper.
Add nuts, pumpkin seeds, sunflower seeds, almond flour, sweetener, melted coconut oil and salt to a food processor or high-speed blender. Pulse until nuts and seeds are roughly chopped into coarse pieces. Do not over-process.
If desired, add now chocolate chips - do not blend again.
Transfer the nut mixture to the prepared baking sheet and spread it out evenly in a thin layer.
Bake keto nut granola in the middle rack of your preheated oven for 15 minutes, stirring halfway through.
Allow it to cool for at least 30 minutes before breaking it into pieces. The low carb cereal will crisp up as it cools to room temperature.