Bake the tart case, without filling, as per the manufacturer's instructions. Combine the FAGE Total® Classic Greek Yogurt, milk, eggs, nutmeg and parsley in a large mixing bowl to make the custard. Whisk together and season to taste. In the baked tart case, place the broccoli and diced feta equally over the base. Pour the yogurt mix over until the case is full and sprinkle the walnuts on top. Bake for 25 to 35 minutes in oven (400°F). When golden brown turn out and cool on wire rack.