Prepare the mashed potatoes
While the chicken chills, boil the potatoes. Place chopped potatoes in a pot and pour over boiling water. Add a pinch of salt and cook until tender, about 15–20 minutes.

Mash and season the potatoes
Once cooked, drain and mash the potatoes until smooth. Mix in half of the shredded cheese, nutmeg, and olive oil. Stir until creamy.

Form the patties
Lightly grease your hands with vegetable oil. Shape the chilled chicken mixture into medium-sized patties or oval logs.

Assemble in a baking dish
In a large baking dish, layer the bottom with mashed potatoes. Place the chicken patties on top, pressing gently so they settle into the mash.

Prepare the tomato sauce
In a bowl, mix the tomato paste with 1 cup of hot water. Stir in salt and sugar until dissolved.

Pour sauce over patties
Pour the tomato sauce evenly over the chicken and potato layers.

Bake the dish
Preheat your oven to 200°C (400°F). Bake for 45 minutes, uncovered, until the chicken is cooked and the sauce has thickened.

Top with cheese and brown
Sprinkle the remaining shredded mozzarella over the top. Return to the oven and bake for another 10–15 minutes, or until the cheese is golden and bubbling.

Serve
Let cool for a few minutes before serving. Garnish with extra parsley if desired. Enjoy warm.