Foryoueats: The Best Spinach Lasagna Recipe

Ingredients

• For the Spinach:
• 2 tablespoons butter, divided
• 2 tablespoons extra-virgin olive oil
• 1 shallot, finely minced (about 1/2 cup)
• 6 medium cloves garlic, minced (about 2 tablespoons)
• Kosher salt and freshly ground black pepper
• 2 pounds fresh flat or curly spinach leaves, washed and dried
• For the Ricotta:
• 2 pounds fresh ricotta cheese (see note)
• 2 eggs
• 4 ounces finely grated Parmigiano-Reggiano cheese
• 1 teaspoon freshly grated nutmeg
• For the White Sauce:
• 4 tablespoons butter
• 1/4 cup flour
• 1 quart (4 cups) whole milk
• 12 ounces grated low moisture mozzarella cheese
• 12 ounces grated Comté, Gruyère, or Emmenthaler cheese
• For Assembly:
• 1 1/2 pounds (enough sheets to make 12 layers) fresh lasagna noodles