Preheat your oven to 400F/ 200C. To a bowl, add the ground turkey, ¼ cup pecorino romano, ¼ cup Emmental, the egg, ½ teaspoon salt and ½ teaspoon black pepper. Chop the parsley and add most of it in, reserving the rest for garnish.
Mix the meatball ingredients until well combined. Divide into 20 portions and roll them into meatballs. Add the ghee to a skillet and place it over medium-high heat.
Cook the meatballs in a skillet until browned on all sides. You may have to do this in 2-3 batches if your pan is small. Remove the meatballs from the skillet and transfer them to a casserole dish.
Add the heavy cream to the skillet. Stir to remove the caramelized bits at the bottom of the pan. Season with the remaining salt and pepper and simmer for 5 minutes until it has thickened. Turn off the heat and stir in the remaining pecorino romano cheese.
Pour the heavy cream mixture over the meatballs. Sprinkle the remaining Emmental cheese on top. Transfer the casserole dish to the oven.
Bake for 15 -20 minutes until the meatballs are fully cooked and the cheese is golden. Let rest for 10 minutes then garnish with the remaining chopped parsley and a crack of fresh black pepper. Serve and enjoy.