Forget the box. My easy Baked Mushroom Sage Mac and Cheese transforms a weeknight staple into an earthy, creamy masterpiece featuring a gooey four-cheese blend and a golden panko-Parmesan crust.

Browned panko breadcrumbs on top of mac and cheese

Table of Contents

Why The Flavor and Recipe Works

This recipe combines a velvety, gooey cheesy sauce with the meaty mushroom bite. Fresh sage brings a hint of autumn warmth, and a golden, crunchy panko breadcrumb topping takes this comfort food to the next level.

Mushroom sage mac and cheese being served with cheesy string pulls

Choosing the Right Ingredients

Achieving perfection requires paying attention to three main components:

  • The Pasta: Skip the flat shapes like bowties that get weighed down. Instead, use sturdy shapes like elbows, shells, penne, or cavatappi. Their crevices trap the heavy sauce so you get extra cheese in every single bite.
  • The Mushrooms: Earthy slices bring a meaty bite and savory depth to the dish.
    The Sage: Fresh leaves introduce a vibrant seasonal warmth that is vastly superior to dried.
  • The Full-Fat Rule: There is no room for low-fat dairy here. Full-fat milk and cheese are the secret to achieving true, luxurious creaminess.

The Four-Cheese Blend

To get the perfect balance of meltability, sharp bite, and pull, this recipe relies on a deliberate mix:

  • Sharp White Cheddar: Provides a clean, punchy bite and sharp aesthetic.
  • Swiss Gruyère: Adds nuttiness and unmatched meltability.
  • Low-Moisture Mozzarella: Delivers those long, cheese-pull strings stretching to the ceiling.
  • Parmesan: Mixed into the panko for a savory, golden crunch on top.

Pro Tips for the Creamiest Sauce

The soul of any great baked mac and cheese is an abundant, silky sauce.

  • The Secret Ingredient: A tiny grating of fresh nutmeg is the ultimate secret weapon for any rich cheese sauce. It won’t make the dish taste like dessert; instead, it cuts through the heavy dairy fats and adds a warm, subtle depth.
  • Grate Your Own Cheese: Pre-shredded is coated in cellulose powder, which prevents a smooth melt and leaves sauces grainy. Shredding blocks fresh makes a huge difference.
  • The Panko Topping: Baked pasta needs textural contrast. Baking with a layer of seasoned panko breadcrumbs creates a golden, crunchy crust that proves this wasn’t made from a box.
A sliced mushroom wellington showing the filling with mushroom and carrots
Brown butter mushroom sage risotto topped with grated Parmesan in a white bowl with 3 forks
Rice pilaf with mushrooms and sage

More Mushroom Recipes You’ll Love

  • Vegetarian Mushroom Wellington with Gravy: A showstopping centerpiece wrapped in flaky puff pastry and loaded with savory fillings.
  • Brown Butter Mushroom Sage Risotto: Rich, nutty brown butter meets slow-cooked Arborio rice and earthy autumn herbs.
  • Mushroom and Sage Rice Pilaf: A simple, aromatic side dish packed with fluffy grains and savory pan-seared mushrooms.
A spoonful of gooey, cheesy mushroom sage mac and cheese
5 from 8 reviews

Baked Mushroom Sage Mac and Cheese

Janette
Ultra-creamy baked mac and cheese loaded with earthy mushrooms, fresh sage, a gooey four-cheese blend, and a golden panko and Parmesan crust.
Prep Time: 20 minutes
Cook Time: 15 minutes
Total Time: 35 minutes
Servings: 8
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Ingredients
 

For the Topping:

  • ½ cup (28 grams) panko breadcrumbs
  • ¼ cup (18 grams) freshly grated Parmesan cheese
  • 1 teaspoon fresh sage, finely chopped

For the Pasta and Sauce:

  • 1 pound (453 grams) pasta of your choice, I like medium size shells
  • 1 tablespoon (14 grams)  unsalted butter, * see note
  • 2 tablespoons (30 grams)  extra virgin olive oil
  • ¾ pound (12 ounces/226 grams)  brown mushrooms, sliced (you can add more if you like)
  • 1 tablespoon (4 grams)  fresh sage, finely chopped
  • 4 tablespoons (56 grams)  unsalted butter, * see note
  • ¼ cup (30 grams)  all-purpose or plain flour
  • 3 cups (708 ml)  whole milk, slightly warm
  • 1 cup (236 ml)  heavy or double cream, slightly warm
  • Salt to your taste
  • Small pinch of ground nutmeg
  • 2 cups/6 ounces (160 grams)  sharp white cheddar, grated
  • 2 cups/6 ounces (160 grams)  Gruyère cheese , grated
  • 1 cup/3 ounces (80 grams)  low moisture whole milk mozzarella, grated ** see note

Instructions
 

Make the Topping:

  • In a small bowl, combine the panko breadcrumbs, grated Parmesan cheese and  sage. Stir to mix well, then set aside.

Prep Oven and Pasta:

  • Preheat your oven to 400°F/200°C with the oven rack in the center position. Have a large sheet pan ready and a 9 x 13-inch (23 x 33 cm) casserole dish.
  • Bring a large pot of water to a boil, add the pasta, and cook according to the package directions, undercooking it by 2 minutes so it doesn’t overcook when baked. Drain and set aside.

Brown the Mushrooms:

  • While the pasta cooks, heat the 1 tablespoon of butter and the olive oil in a large saucepan over medium heat. Add the mushrooms and cook until browned, about 8 minutes, stirring often. They will shrink in size. Turn down the heat and stir in the 1 tablespoon of chopped sage and cook for 1 more minute. Remove the mushrooms and sage from the pan and set aside.

Make the Roux (The Butter and Flour Thickener):

  • In the same saucepan, melt the remaining 4 tablespoons of butter over medium heat. Once melted, whisk in the flour to form a smooth paste and cook for about 2 minutes until it smells nutty and turns lightly golden. Watch the heat to make sure it doesn’t brown.

Make the Sauce:

  • Slowly pour in the whole milk and heavy cream while whisking continuously to prevent lumps. Cook until the mixture thickens, then stir in the nutmeg.

Melt the Cheese:

  • Once thickened and smooth, turn the heat down to very low. Add the cheddar, Gruyère, and mozzarella in small batches, stirring constantly until completely melted. Remove the pan from the heat immediately.
  • Fold the cooked pasta and cooked mushrooms straight into the cheese sauce until thoroughly coated. Taste and see if it needs salt, add to your taste.

Bake:

  • Transfer the mixture into an 9 x 13-inch (23 x 33 cm) baking dish (or individual baking dishes) and sprinkle the panko-Parmesan mixture evenly over the top. Place the baking dish onto the baking sheet to catch any bubbling drips, and bake for 15 minutes until the breadcrumbs are golden brown. Serve warm.

Notes

* Unsalted butter is specified because the cheese can be salty
** The Mozzarella Tip: For that ultimate, stringy cheese pull, stick with a block of low-moisture, whole-milk mozzarella and grate it yourself on a box grater. Avoid fresh mozzarella packed in water, which releases too much liquid and can make your sauce watery. If you’re in a pinch, whole-milk mozzarella string cheese works brilliantly when grated.
Serving: 1, Calories: 585kcal, Carbohydrates: 57g, Protein: 23g, Fat: 31g, Sodium: 789mg, Sugar: 6g
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