Spinach Lasagna Recipe

Ingredients

• Dry lasagna noodles (8 oz), cooked according to package directions
• 1 recipe béchamel sauce (see recipe below)
• 1 (10 oz) package frozen chopped spinach, drained well
• Ricotta cheese (32 oz)
• 1/2 cup Parmesan cheese, grated
• 1/2 teaspoon Kosher salt
• 1/4 teaspoon freshly ground black pepper
• Mozzarella cheese (1 pound), shredded
• Parmesan cheese for sprinkling
• 5 tablespoons butter
• 1/2 cup all-purpose flour
• 4 cups warm whole milk
• 1/2 teaspoon salt
• 1/4 teaspoon freshly ground white pepper (or black)
• Pinch of freshly grated nutmeg