Melt the butter on a frying pan.
Add chopped rosemary and mushrooms. Season it with salt and pepper.
Fry for about 3 minutes, then add chopped parsley.
Then place it on the whole-grain dough, that you’ve already baked
Add walnut and garlic in shells.
Mix the sour cream with eggs, add a pinch of salt.
Pour the mix to mushrooms.
Bake in the oven preheated to 180 degrees (Celsius) for about 15 minutes.