Traditional Lasagna

Ingredients

• 3 tablespoons olive oil
• 1 onion, finely chopped
• 2 carrots, finely chopped
• 2 celery stalks, finely chopped
• 4 cloves garlic, minced
• 1 pound ground beef
• 1 pound ground pork (optional)
• 1/2 cup red wine (optional)
• 1 (28-ounce) can crushed tomatoes
• 1/4 cup tomato paste
• 2 bay leaves
• 2 tablespoons dried oregano (or Italian seasoning)
• 1 parmesan rind (optional)
• 2 tablespoons salt
• 2 teaspoons black pepper
• 4 tablespoons butter
• 4 tablespoons all-purpose flour
• 3 cups milk
• 1/2 cup parmesan cheese, shredded
• 1 tablespoon salt
• 1/4 teaspoon black pepper
• Pinch of nutmeg (optional)
• 2 boxes (24 ounces) lasagna noodles (fresh or oven ready)
• 1 cup grated Parmesan cheese
• 2 cups shredded mozzarella cheese