Grate zucchini and squeeze out all of the excess water using paper towel or a thin dish towel. This is key! Do not skip this step.
Chop onion and kale into small pieces. Combine everything into one bowl until well mixed.
Heat a frying pan over medium heat with your oil of choice. I used avocado oil (it has a higher melting point so it prevents the mix from burning).
Form the mixture into small patties, and cook for about 3 minutes on each side.
In the mean time, mix up all ingredients for the avocado crema in either a blender, food processor, or manually with a whisk. You really can’t mess it up so adjust the ingredients to your liking. Add in some water to thin it out if you prefer that consistency.
Notes
Storage: in an air tight container for about 3 days in the fridge. They’ll be best when reheated in a pan or in the oven to crisp up.