First, make the meat sauce. Get out a large dutch oven and heat the olive oil in it over medium high heat. Add in the onion, garlic and mint and let them get fragrant for a couple of minutes. Then put in the ground lamb and brown it as you completely break it up. While it cooks through and browns, season it with the salt, pepper, cinnamon, nutmeg, clove, cumin and cayenne. Once the meat is brown, stir in the tomato paste and let it cook through for a minute. Then add in the wine and let it absorb into the meat for about 5 minutes. Finally, add in the diced tomatoes and bay leaves. Bring it to a boil, then reduce it to a simmer to cook for 45 minutes.

While the meat sauce cooks, make the bechamel sauce. Also get on a pot of water to boil for the pasta. For the bechamel, heat the butter in a medium sauce pan and let start to really melt. Whisk in the flour and keep whisking until you have a golden, thick paste. Keep whisking while you slowly pour in the milk. Add in the nutmeg and 1/4 cup of  the parmesan and stir them in. Let the sauce gently bubble and thicken for 10-15 minutes, whisking it often to keep it smooth. When it is done, set it aside. Then cook the pasta. Salt the boiling water generously, then let the pasta cook in it until tender for about 8 minutes. Drain it and set it aside. Pre-heat the oven to 350.

When the sauce is done, remove the bay leaves and stir the cooked pasta into it thoroughly. Get out a 9 x 13 lasagna pan and transfer the pasta with meat sauce into it in an even layer. Spread the bechamel in an even layer over the pasta. Then sprinkle the remaining half cup of parmesan on the very top. Bake the pastitsio for about 40-45 minutes, until bubbly. Take it out and sprinkle additional chopped mint on top and serve immediately! Makes great leftovers too.