Preheat the oven to 200 C.
Line a tray with baking paper and set it aside.
Add all the keto pizza crust ingredients to a food processor.
Process everything at high speed, until a homogeneous, sticky puree is formed.
Brush the prepared baking paper with some oil.
Transfer the keto pizza crust dough to the prepared baking tray. Flatten it using your fingers and give it a round shape. It should be about 1cm thick.
Bake for about 7-10 minutes, or until lightly golden.
Take it out of the oven and add the grated gouda cheese on top, sliced green bell pepper, and some baby spinach.
Return to the oven and bake for about 7 more minutes.
Top with some fresh basil and serve!