Creamy Spinach Ricotta Lasagna My Italian Comfort Secret -…

Ingredients

• 1 tbsp (15 ml) olive oil
• 1 medium yellow onion, finely chopped (approx. 1 cup/150g)
• 2 cloves garlic, minced
• 1 (10 oz/283g) package frozen chopped spinach, thawed and squeezed dry
• 15 oz (425g) whole milk ricotta cheese
• 1 large egg, lightly beaten
• ½ cup (50g) grated Parmesan cheese, plus more for topping
• ¼ tsp ground nutmeg
• Salt and freshly ground black pepper to taste
• 4 tbsp (57g) unsalted butter
• 4 tbsp (32g) all-purpose flour
• 4 cups (950 ml) whole milk, warmed
• Salt and freshly ground white pepper to taste
• 9 lasagna noodles, oven-ready (no-boil)
• 1 cup (approx. 225g) shredded mozzarella cheese