Whisk eggs and melted butter together then add Parmesan cheese, semolina, a pinch of nutmeg, and salt until smooth.
Pour into a greased dish and bake at 180°C for 20-25 minutes until firm and golden. I used a 20x30 cm tin. The thickness of the batter was ~1cm. Use a spatula to help you smooth down the surface.
Let it cool down then cut into small cubes (~1x1cm)