Ingredients
Equipment
Method
- Preheat your oven to 375°F (190°C) and butter a 9x13 inch baking dish.
- Bring a large pot of salted water to a boil, add the linguine broken in half, and cook according to package directions until al dente; drain and set aside.
- In a large skillet or Dutch oven, melt 2 tablespoons of butter over medium-high heat, add the sliced mushrooms, and cook until tender and browned, about 8-10 minutes; season with salt and pepper, then remove from the skillet and set aside.
- Melt the remaining 4 tablespoons of butter in the same skillet over medium heat, then whisk in the all-purpose flour and cook for 1 minute to create a roux.
- Gradually whisk in the milk, chicken broth, and dry white wine until smooth; bring to a simmer, stirring constantly, and cook until the sauce thickens.
- Stir 2 cups of the grated Parmesan cheese and the dried thyme into the sauce; season generously with salt and pepper to taste.
- Combine the cooked linguine, shredded rotisserie chicken, sautéed mushrooms, and thawed peas with the creamy sauce in the skillet.
- Pour the mixture into the prepared baking dish, spreading it evenly.
- Sprinkle the remaining 1 cup of Parmesan cheese over the top of the casserole.
- Bake for 20-25 minutes, or until bubbling and the cheese is golden brown; let stand for a few minutes before serving.
Notes
For an exceptionally smooth sauce, ensure the roux is fully cooked before gradually adding cold milk and broth while whisking continuously to prevent lumps. Cook the linguine al dente, as it will continue to cook slightly in the oven. Using a good quality dry white wine will significantly enhance the depth of flavor; however, extra chicken broth can be substituted if preferred. Feel free to incorporate fresh herbs like parsley or tarragon at the end for brightness.
