01 -
Melt butter in a skillet over medium heat, then add flour and whisk continuously. Cook for approximately 6 minutes until the mixture is golden in color.
02 -
Warm the milk in a separate pan until nearly boiling. Gradually add the milk, one cup at a time, to the flour mixture, whisking until smooth after each addition.
03 -
Bring the sauce to a boil, then reduce heat slightly and simmer for 10 minutes while stirring constantly. Season with salt, black pepper, and nutmeg.
04 -
Preheat the oven to 200°C. Line a round casserole dish with parboiled potato slices, covering the base and sides.
05 -
In a bowl, combine ground beef, diced onion, parsley, paprika, salt, pepper, and a pinch of nutmeg. Mix well and form into evenly sized meatballs.
06 -
Arrange the meatballs onto the potato-lined dish. Place potato slices between each meatball.
07 -
Pour the prepared béchamel sauce evenly over the assembled meatballs and potatoes. Sprinkle shredded mozzarella over the top.
08 -
Bake in the preheated oven for 15 minutes, or until the cheese is melted and golden brown.