Greek Comfort Casserole

Ingredients

• 2 large eggplants, cut into 1/2-inch slices
• salt, to taste
• oil, to taste
• 2 tablespoons olive oil
• 1 small onion, chopped
• 4 cloves garlic, finely chopped
• 1 1/2 pounds ground lamb or beef
• 1/2 cup red wine
• 1 (14.5-ounce) can crushed tomatoes
• 3 tablespoons tomato paste
• 1 cup beef broth
• 1 1/2 tablespoons oregano
• 1 teaspoon cinnamon
• 1/2 teaspoon paprika
• 1/2 teaspoon nutmeg
• 1 teaspoon sugar
• 1/2 teaspoon black pepper
• parsley, optional, to taste, chopped, for garnish
• 1/2 cup butter
• 1/2 cup flour
• 3 cups milk
• 1 teaspoon salt
• 1/2 cup parmesan cheese, shredded, divided
• 2 egg yolks