Start by peeling and cubing the potatoes.
Heat up 2/3 of your oil in a pan on medium heat. Sauté the finely chopped onion for about 2-3 minutes until fragrant.
Add the minced pork to the pan, breaking it up with a kitchen turner as it cooks. Cook it for 5-7 minutes until it changes color, stirring occasionally.
Add the salt, ground black pepper, paprika, and dried savory and mix. Continue to cook for about 5 minutes, stirring occasionally.
Finely chop the tomatoes and add half to the mince in the stovetop pan. Stir well and continue to cook for another 5 minutes.
Preheat the oven to 390°F (about 200°C). Pour the rest of the oil, the rest of the chopped tomatoes, the finely chopped potatoes, and the cooked minced meat from the stovetop pan into the baking tray. Mix them well.
Pour in one cup of hot water over the top. Stir and bake for about 1 hour 30 minutes or until the potatoes brown.
Meanwhile, prepare the topping. Mix eggs, yogurt, and flour in a bowl. Season with a pinch or two of salt.
After initial baking, pour the topping on the moussaka, spreading well to cover the whole dish. Bake for another 30 minutes or until golden brown.
Let it cool for 10-15 minutes. Then serve the casserole with yogurt and chopped parsley.