Spring Vegetable Lasagna Recipe | Better with Dairy

Ingredients

• 7 tablespoons unsalted butter
• 5 cups whole milk
• 2 1/2 cups ricotta
• 3 cups shredded mozzarella
• 1 1/2 cups shredded Parmesan cheese
• 1/3 cup all-purpose flour
• 2 teaspoons kosher salt
• 1 teaspoons black pepper
• 2 cups fresh baby spinach
• 1 bunch asparagus
• 1 cup green peas
• 1 large egg
• 1 lemon
• 12 lasagna noodles
• 1 sprig fresh parsley