It is necessary:
120 ml yoghurt
80 ml oil
sachet baking powder,
flour as needed,
200 g button mushrooms,
100 g feta cheese
200 to 300 ml of ketchup,
50 g chopped (grated) prosciutto (ham).
Mix yogurt and oil.
Add salt and gradually add flour, baking powder.
Prepare the dough by hands, shape and place in greased baking pan.
Coat with ketchup and then put the sliced mushrooms, prosciutto (ham), crumbled cheese, again pour ketchup, put the oregano, parsley and in the middle put one egg.
Bake at 200 ⁰ C, 25 to 30 minutes.