Oven-Baked Sausage and Mushroom Pasta Gratin

Instructions

1️⃣ Cook the pasta:

  • Bring a large pot of salted water to a boil and cook the pasta 2 minutes less than package directions (it will finish cooking in the oven).
  • Drain and set aside.

2️⃣ Cook the sausage and mushrooms:

  • In a large skillet, heat olive oil over medium-high heat.
  • Add the sausage, breaking it up with a spoon. Cook until browned.
  • Add onion, garlic, and mushrooms; sauté until softened and golden.
  • Season with thyme, salt, and pepper.
  • Deglaze with wine or broth if using; cook until most liquid evaporates.

3️⃣ Prepare the sauce:

  • In a saucepan, melt butter over medium heat. Stir in flour and whisk for 1 minute to form a roux.
  • Gradually whisk in the warm milk and cream.
  • Cook until thickened and smooth.
  • Stir in mozzarella, Parmesan, nutmeg, salt, and pepper.

4️⃣ Combine everything:

  • Add cooked pasta and sausage-mushroom mixture to the sauce. Stir until well coated.

5️⃣ Transfer to a baking dish (9×13 inches).

  • In a small bowl, mix breadcrumbs, melted butter, and Parmesan.
  • Sprinkle evenly on top.

6️⃣ Bake at 375°F (190°C) for 20–25 minutes, or until golden and bubbly.

  • For extra crispiness, broil the top for 2–3 minutes at the end.

🍄 To Serve:

Let the gratin rest for 5 minutes before serving. Sprinkle with fresh parsley and enjoy with garlic bread or a green salad.


💡 Tips:

  • Add spinach or peas for color and freshness.
  • Substitute sausage with shredded chicken or pancetta.
  • For a smoky twist, use smoked gouda or provolone in place of mozzarella.

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