Boil the macaroni. Reduce 2 minutes from the cooking time. Often 6 minutes is good. Pour out the water after cooking.
Preheat your oven to 350 F(175 C)
When the macaroni is boiling peel and chop your onion into very small cubes.
Fry the beef and onion on a pan until the fat and liquid have fried away and you have a dryish meat onion mix. Make sure, though, you don´t burn them.
Add in the soy sauce, tomato paste, and spices. Mix well.
Pour your macaroni into the baking dish. Mix in the beef and give it a stir.
Whisk together eggs, milk, and nutmeg. Pour the egg-milk over the macaroni-meat mix.
Top with grated cheese and oregano. Cover your dish with aluminum foil. -Bake for 30 minutes. Remove the foil and bake for additional 15 minutes.
Let the pasta bake rest a while before serving, so the egg mix sets.