Moussaka

Name: Moussaka
Ingredients: 2 pounds ground lamb or beef; 2 Tbsp olive oil; 1 chopped onion; 4 chopped garlic cloves; 1 teaspoon allspice; 1 teaspoon cinnamon; 1 teaspoon black pepper; 1 Tbsp dried oregano; 2 Tbsp tomato paste; 1/2 cup red wine; Zest of a lemon; 2 Tbsp or more of lemon juice; Salt to taste; 1 stick unsalted butter; 1/2 cup flour; 1 teaspoon salt; 4 cups whole milk; 4 egg yolks; 1/2 teaspoon ground nutmeg; 3 large globe eggplants; 1/2 cup salt; 8 cups water; 2-3 Yukon gold or other yellow potatoes; 1 cup grated mizithra cheese (or pecorino or Parmesan); Olive oil