# What You'll Need:
→ Protein & Pasta
01 - 3 cups cooked turkey, shredded or diced
02 - 12 ounces spaghetti or linguine
→ Vegetables
03 - 8 ounces sliced cremini or white mushrooms
04 - 1 medium yellow onion, finely chopped
05 - 2 cloves garlic, minced
06 - 1 cup frozen peas (optional)
→ Dairy
07 - 4 tablespoons unsalted butter
08 - 1/4 cup all-purpose flour
09 - 2 cups whole milk
10 - 1/2 cup heavy cream
11 - 1 cup grated Parmesan cheese
12 - 1 cup shredded mozzarella or Gruyère cheese
→ Liquids
13 - 1/2 cup dry Chardonnay or other dry white wine
14 - 1 cup low-sodium chicken or turkey broth
→ Seasonings
15 - 1/2 teaspoon dried thyme
16 - 1/4 teaspoon freshly grated nutmeg
17 - 1/2 teaspoon kosher salt, plus more to taste
18 - 1/4 teaspoon black pepper
→ Topping
19 - 1/2 cup panko breadcrumbs
20 - 2 tablespoons unsalted butter, melted
21 - 2 tablespoons grated Parmesan cheese
# How To Make It:
01 - Preheat the oven to 375°F. Lightly grease a 9 by 13-inch baking dish.
02 - Boil salted water and cook spaghetti until just al dente. Drain and set aside.
03 - In a large skillet over medium heat, melt 4 tablespoons butter. Add chopped onion and cook for 2 minutes. Add mushrooms and sauté until softened and lightly browned, about 5 minutes. Stir in minced garlic and cook for 1 additional minute.
04 - Sprinkle flour over the vegetables and cook, stirring continuously, for 2 minutes. Gradually whisk in white wine, scraping up any browned bits from the skillet, then simmer for 2 minutes.
05 - Whisk in broth, whole milk, and heavy cream until smooth. Bring the mixture to a simmer and cook until slightly thickened, approximately 3 to 4 minutes. Stir in dried thyme, nutmeg, kosher salt, and black pepper. Remove from heat.
06 - Incorporate cooked turkey, frozen peas (if using), and drained pasta into the sauce, tossing well to combine. Mix in the grated Parmesan and shredded mozzarella or Gruyère cheeses.
07 - Transfer the mixture evenly into the prepared baking dish.
08 - In a small bowl, combine panko breadcrumbs, melted butter, and 2 tablespoons grated Parmesan cheese. Sprinkle this mixture uniformly over the casserole.
09 - Bake in the preheated oven for 25 to 30 minutes, until the topping is golden and the filling is bubbly. Allow to rest for 10 minutes before serving.