Cooking:

1. Cut onion and mushrooms, then fry them in sunflower oil/butter
2. Add the heavy cream, seasoning, parsley, black pepper and cook everything until creamy.
3. Transfer to a tray. Sprinkle completely on top with Mozzarella cheese and put in the oven at 375 F for 15-20 minutes (or until the cheese is golden in color).

Conclusion: Delicious! Love it!