Eggplant Layer:

• 2 large eggplants, sliced into 1/4-inch rounds

Potato Layer:

• 2 medium potatoes, sliced thin

Meat Sauce:

• 1 pound ground lamb or beef
• 1 medium onion, diced
• 3 cloves garlic, minced
• 1 can (14.5 ounces) crushed tomatoes
• 2 tablespoons tomato paste
• 1/2 cup red wine (optional)
• 1 teaspoon dried oregano
• 1/2 teaspoon ground cinnamon
• 1/4 teaspoon nutmeg
• 3 tablespoons olive oil
• Salt and pepper, to taste

Béchamel Sauce:

• 3 tablespoons unsalted butter
• 3 tablespoons all-purpose flour
• 2 cups milk, warmed
• 1/4 cup grated Parmesan cheese
• 1 egg yolk
• 1/4 teaspoon ground nutmeg

Additional:

• 3 tablespoons olive oil (for sautéing)
• 1/4 cup breadcrumbs