Easy lamb mince moussaka

Ingredients

• 1 large eggplant, cut into 0.5cm slices
• 2 tablespoons olive oil
• 1 onion, finely chopped
• 3 cloves garlic, crushed
• 500 grams lean lamb mince
• 400 grams can crushed tomatoes
• 1/2 cup dry white wine
• 1/2 teaspoon ground nutmeg
• 1/4 cup tasty cheese, grated
• 1/4 cup Parmesan, grated
• oregano, salad and crusty bread, to serve
• White sauce
• 2 cups milk
• 2 tablespoons cornflour