Finely chop all the herbs and mix them together with garlic powder.
Chop the tomatoes into very small pieces and crumble the Feta cheese. Mix them with an egg using a fork. Add the herbs and whisk some more.
Mix baking soda and lemon juice in a small glass and add this foamy mixture to your tomato and feta mixture.
When the mixture is unified, add 2 tbsp of psyllium and whisk until psyllium gets absorbed and the consistency is smooth.
Leave the mixture in the refrigerator for 5 minutes.
The mixture will dry out due to psyllium activity, so you will be able to create small patties.
In a deep frying pan, melt the butter and add olive oil. Fry the patties for 3 minutes from each side and serve them with a dash of Greek yoghurt or sour cream.