MEAT:

In a pot on the stove, fry the onions with oil until they change color. Then, add the meat and stir until the water evaporates. Next, add salt, black pepper, sumac and oregano. Lastly, add the water and tomato paste. Let simmer on low heat until the mixture thickens.

WHITE SAUCE:

Place the flour in a pot and gradually add milk while constantly stirring.

Place the pot on the stove. Stir the milk until it thickens. Then, add the nutmeg, white pepper & salt.

Pour some of the white sauce into Pyrex. Then, place one layer of the lasagna pasta. Add the meat sauce on top of the lasagna pasta and spread some cheese over. Next, pour on some more white sauce and add another layer of lasagna pasta. Add the ham and some cheese. Pour the white sauce over again. Add the last layer of lasagna pasta. Cover with the remaining white sauce. Spread the cheese over the top layer.

Bake in the oven until golden.