Ingredients

Steps

• Preheat the oven to 180°C.
• Melt butter in a large saucepan and sauté chopped onion until soft.
• Stir in cream and stock, bring to a boil, and simmer to thicken.
• Fry sliced mushrooms in butter until golden brown.
• Season mushrooms with herbs, salt, and pepper.
• Add the turkey, ham, and mushrooms to the cream sauce and stir.
• Boil potatoes until soft, then mash with butter, egg yolk, and milk.
• Transfer the meat mixture to a gratin dish and spread mashed potatoes on top.
• Bake for 20-30 minutes until the topping is golden and the filling is hot.