Ricardo's Moussaka

Ingredients: 

Moussaka
1 large eggplant, cut into 1-cm (1/2-inch slices)
2/3 cup olive oil
1 pound extra lean ground beef
1 onion, chopped
2 cloves garlic, chopped
1 pinch ground cinnamon
1 pinch ground cloves
1 pinch ground ginger
1/2 cup white wine
1 can diced tomatoes (14oz)
1/2 cup chopped flat-leaf parsley
1/2 cup breadcrumbs
Salt and pepper
Yogurt Béchamel
1 tablespoon butter
1 tablespoon unbleached all-purpose flour
1 cup plain yogurt (4% MF or lighter)
1/4 cup grated Parmigiano-Reggiano
1 egg yolk
1 pinch ground nutmeg

Directions: 

Moussaka
In a large skillet over medium heat, brown the eggplant, several slices at a time, using 125 ml (1/2 cup) of the oil. Season with salt and pepper. Set aside on a plate.
In the same skillet in the remaining oil, brown the meat and onion with the garlic and spices, breaking the meat up with a fork or wooden spoon. Season with salt and pepper. Add the wine. Bring to a boil and reduce until nearly all the wine has evaporated. Add the tomatoes and parsley. Bring to a boil. Remove from the heat. Add 60 ml (1/4 cup) of breadcrumbs, stirring well to combine. Adjust the seasoning. Set aside.
Yogurt Béchamel
In a saucepan over medium heat, melt the butter. Dust with the flour and cook for 1 minute. Add the yogurt and bring to a boil while stirring. Season with salt and pepper. Remove from the heat and stir in the cheese, egg and nutmeg. Adjust the seasoning. Set aside.
With the rack in the middle position, preheat the oven to 200°C (400°F).