SPINACH AND ARTICHOKE DIP MAC 'N' CHEESE

Steps:

• Position an oven rack in the center of the oven and preheat the broiler.
• Bring a large pot of water to a boil and cook the macaroni according to the package instructions. Reserve 3/4 cup of the cooking water, then drain the macaroni and set aside.
• Wipe out the pot. Add the butter and melt over medium heat. Add the shallots and cook, stirring occasionally, until soft, 2 to 4 minutes. Add the garlic and cook, stirring, until soft, about 2 minutes. Add the flour and cook, whisking constantly, until it begins to toast, about 2 minutes. (The flour will form a thick paste, but that's okay; just keep it moving in the pot.) Whisk in the milk and the reserved macaroni water and cook, whisking constantly, until the mixture is thick like gravy, 3 to 5 minutes. Whisk in the Swiss cheese, sour cream, 2/3 cup of the mozzarella and 1 tablespoon of the Parmesan. Once the cheeses have melted, add the spinach and cook until just wilted, about 1 minute. Stir in the artichoke hearts, macaroni, lemon zest, 1 teaspoon salt and 1/4 teaspoon pepper. Transfer to a broiler-safe 2-quart baking dish.
• Stir together the remaining 1/3 cup mozzarella and 3 tablespoons Parmesan in a small bowl, then sprinkle over the macaroni. Broil until golden and bubbly, about 2 minutes.