
Baked Penne with Butternut Squash and Sage Sauce: The Ultimate Fall Comfort Food
As autumn leaves begin to turn and the air grows crisp, our appetites naturally gravitate towards warm, comforting dishes that nourish both body and soul. Few meals capture the essence of fall quite like a perfectly baked pasta, and this recipe for Baked Penne with Butternut Squash and Sage Sauce stands out as an undeniable favorite. It’s a symphony of seasonal flavors, combining the creamy sweetness of butternut squash with the earthy aroma of fresh sage, all enveloped in a rich, cheesy pasta bake that’s destined to become a staple in your culinary repertoire.
This dish is an elevated take on a classic, transforming a simple pasta sauce into a show-stopping casserole that’s perfect for feeding a crowd or savoring as a cozy weeknight meal. Inspired by the beloved baked pastas renowned for their crispy tops and gooey interiors, this recipe ensures every forkful is a delight. We take par-cooked penne, coat it generously in a silky-smooth, vibrant butternut squash-sage sauce, and then mix in a generous blend of mozzarella and Parmesan cheeses. The magic truly happens in a hot oven, where the pasta tips achieve a delightful crispness and the cheeses melt into a golden, bubbly crust, creating an irresistible texture and flavor contrast.
Whether you’re hosting a dinner party, planning a potluck, or simply craving a hearty and wholesome meal, this baked penne delivers. It’s incredibly satisfying, visually appealing, and surprisingly straightforward to prepare. Get ready to impress your guests and warm your home with the inviting aromas of this delicious, comforting autumn masterpiece.
Why This Butternut Squash Penne Bake Will Become Your New Favorite
There’s more to love about this Baked Penne with Butternut Squash and Sage Sauce than just its incredible taste. This dish embodies everything you seek in a comforting meal, making it an ideal choice for a variety of occasions:
- Unforgettable Flavor Profile: The natural sweetness of roasted butternut squash perfectly balances the herbaceous notes of fresh sage and the savory depth of Parmesan cheese. A touch of cream adds luxurious richness, creating a harmonious and addictive flavor that’s both elegant and rustic.
- Irresistible Textures: From the al dente bite of the penne pasta to the velvety smoothness of the squash sauce, and the satisfying chew of melted mozzarella, every element contributes to a delightful textural experience. The pièce de résistance? The golden-brown, slightly crispy edges and top layer of cheese that forms in the oven.
- Crowd-Pleasing and Family-Friendly: This recipe scales beautifully, making it perfect for feeding large gatherings, holiday meals, or everyday family dinners. Even picky eaters are often won over by the mild sweetness of the squash and the familiar comfort of a cheesy pasta bake.
- Make-Ahead Potential: Life gets busy, and having a delicious meal ready to go is a game-changer. The butternut squash sauce can be made days in advance, and the entire dish can be assembled and refrigerated, ready to be baked when you need it. This flexibility makes entertaining or meal prepping a breeze.
- Nutrient-Rich Ingredients: Butternut squash is not only delicious but also packed with vitamins, fiber, and antioxidants, making this comfort food a surprisingly wholesome choice.
Embrace the flavors of the season and discover the joy of creating a dish that truly satisfies on every level. This baked penne isn’t just a meal; it’s an experience waiting to be shared.

Crafting the Silky Butternut Squash and Sage Sauce
The heart of this extraordinary baked penne is its rich and creamy butternut squash and sage sauce. Building this sauce is a straightforward process that yields incredibly flavorful results. It starts with fresh, quality ingredients that truly sing with the essence of autumn.
The Foundation: Butter, Sage, and Aromatics
Begin by melting unsalted butter in a large, heavy pot. This step is crucial, as the butter not only provides richness but also serves as the medium for infusing the initial flavors. Once the butter foams and subsides slightly, add a generous bundle of fresh sage leaves. As the sage gently cooks, it releases its distinct, earthy, and slightly peppery aroma, perfuming the butter beautifully. This fragrant sage-infused butter sets the stage for the depth of flavor in our sauce.
Next, finely chopped small onion joins the party, sautéing until translucent and sweet. The onion adds a foundational layer of savory flavor that complements the squash without overpowering it. Together, the sage and onion create an aromatic base that will elevate the entire dish.

The Star Ingredient: Butternut Squash
The star of our sauce is, of course, the butternut squash. After peeling and cubing about one pound of butternut squash into one-inch pieces, add them to the pot with the aromatic butter, sage, and onion. Along with the squash, add 1 1/2 cups of water and a teaspoon of kosher salt, plus freshly cracked pepper to taste. The squash will simmer, uncovered, allowing it to soften beautifully while the water reduces and concentrates the flavors. This slow simmering process, stirring occasionally, takes about 15 to 20 minutes, depending on the size of your squash cubes. You’ll know it’s ready when the squash is incredibly tender, practically melting at the touch of a spoon.
Achieving Velvety Smoothness
Once the squash is tender, it’s time to transform it into a silky-smooth sauce. If you have an immersion blender, this step is wonderfully easy: simply purée the mixture directly in the pot until it reaches a creamy consistency. For those without an immersion blender, transfer the cooked squash mixture to a food processor or a traditional blender and purée until completely smooth. The goal is a luxurious, thick sauce that easily coats the back of a spoon. If your sauce seems a little too thin, a quick simmer over low heat will help it thicken to perfection. You should end up with approximately 3 cups of this vibrant, aromatic sauce, ready to embrace the penne.

The Perfect Pasta Base: Par-Cooking and Assembly
With our luscious butternut squash and sage sauce complete, the next crucial step is preparing the pasta and assembling the bake. This ensures the penne maintains its ideal texture and absorbs all the wonderful flavors during baking.
Choosing and Par-Cooking the Penne
For a baked pasta dish, selecting the right pasta shape is important, and penne is an excellent choice. Its tubular shape and ridged surface are perfect for capturing and holding onto the creamy sauce. The key to successful baked pasta is par-cooking. We don’t want fully cooked pasta, as it will continue to cook in the oven and could become mushy. Instead, bring a large pot of generously salted water (about 1 tablespoon of kosher salt for a large pot) to a rolling simmer and boil the penne for just 5 minutes. This ensures it’s still firm – al dente, but with plenty of room to absorb moisture and soften further during baking. After 5 minutes, drain the penne and immediately rinse it under cold water. This stops the cooking process and prevents the pasta from sticking together, ensuring individual pieces for a better texture in the final dish.

Assembling the Magnificent Bake
Once the penne is ready, transfer it to a large mixing bowl. Pour the warm, velvety butternut squash and sage sauce generously over the pasta. This is where the magic really begins to come together. Add the heavy cream, which contributes an extra layer of richness and ensures the sauce remains wonderfully creamy during baking. Now, introduce your chosen cheeses: cubed fresh mozzarella or fontina for that classic melty, gooey texture, and a generous heaping half-cup of grated Parmigiano Reggiano for its sharp, salty, umami kick. A final half-teaspoon of salt helps to tie all the flavors together. Gently toss everything until the pasta is thoroughly coated in the luxurious sauce and the cheeses are evenly distributed. This ensures every bite is bursting with flavor and cheesy goodness.

Prepare your baking dish by lightly buttering a shallow 2-quart dish, such as a 9×13-inch pan. This prevents sticking and contributes to a lovely crust on the bottom. Carefully transfer the coated pasta mixture into the prepared pan, spreading it evenly. The dish is now ready for its transformation in the oven.

Baking to Golden Perfection and Serving
The final stage of creating this incredible dish is baking it to golden, bubbly perfection. Preheat your oven to a hot 500ºF. This high temperature is key to achieving that desirable crispy top and melty interior in a relatively short amount of time. Bake the pasta mixture for 10 to 15 minutes, or until you see the sauce bubbling enthusiastically around the edges and the cheese on top has melted into a golden-brown crust. Keep a close eye on it, as ovens can vary.
If, after the initial baking time, the top isn’t browned to your liking, don’t hesitate to use the broiler. Pop the pan under the broiler for an additional 3 to 5 minutes, but stay vigilant! Broilers work quickly, and you want a beautifully golden top, not a burnt one. A rich, golden crust indicates that the cheeses have caramelized slightly, adding an extra layer of savory depth and delightful crispness.

Once baked, resist the urge to dive in immediately! Allow the dish to cool slightly for a few minutes before serving. This brief resting period allows the sauce to set a bit, making it easier to portion and ensuring it doesn’t run everywhere. The flavors will also have a moment to meld even further.
Serving Suggestions and Pairing
This Baked Penne with Butternut Squash and Sage Sauce is a complete meal in itself, but it pairs wonderfully with a few simple accompaniments. A light, crisp green salad with a vinaigrette dressing provides a refreshing counterpoint to the richness of the pasta. A basket of crusty bread is perfect for soaking up any extra sauce, and a glass of dry white wine, like a Sauvignon Blanc or a light-bodied Chardonnay, would complement the creamy flavors beautifully. Whether you’re serving it for a casual weeknight dinner or as a centerpiece for a festive gathering, this dish is guaranteed to be a hit.

Tips for Success and Creative Variations
To ensure your Baked Penne with Butternut Squash and Sage Sauce is always a triumph, consider these helpful tips and exciting variations:
- Make-Ahead Magic: The butternut squash sauce can be prepared up to 3 days in advance and stored in an airtight container in the refrigerator. You can even assemble the entire pasta bake a day ahead of time. Just cover it tightly with foil and refrigerate. When ready to bake, you might need to add an extra 5-10 minutes to the baking time if starting from cold.
- Cheese Please! While mozzarella and Parmesan are classic, feel free to experiment with other cheeses. Fontina adds a nutty, buttery flavor, Gruyère offers a sophisticated edge, and smoked Gouda can introduce an intriguing depth.
- Add Protein: For a heartier meal, brown some Italian sausage (mild or spicy), shredded chicken, or crispy pancetta and stir it into the pasta mixture before baking.
- Vegetable Boost: Enhance the nutritional value and texture by folding in some sautéed spinach, kale, or roasted mushrooms with the pasta.
- A Touch of Heat: If you enjoy a bit of spice, a pinch of red pepper flakes added to the sauce along with the squash will provide a subtle warmth that beautifully complements the sweet and savory flavors.
- Freezing Instructions: This dish freezes well! Bake it, let it cool completely, then cover tightly with foil and plastic wrap. Freeze for up to 2-3 months. To reheat, thaw overnight in the refrigerator and bake at 350°F (175°C) until heated through and bubbly, adding more cheese on top if desired.
By incorporating these tips, you can customize this recipe to your taste and schedule, making it an even more versatile and beloved dish in your kitchen.

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Baked Penne with Butternut Squash-Sage Sauce
5 Stars 4 Stars 3 Stars 2 Stars 1 Star
5 from 3 reviews
Author: Alexandra Stafford
Total Time: 55 minutes
Yield: Serves 4
Description
Inspired by Al Forno’s widely adored baked pasta, this recipe features a luxurious butternut squash-sage sauce. While delicious on its own with boiled noodles, it truly shines when baked, creating a comforting, crowd-pleasing casserole with crispy edges and a creamy interior.
Ingredients
- 4 tablespoons unsalted butter, plus more for greasing
- 1 small bundle fresh sage leaves
- 4 cups 1-inch cubes, butternut squash (about 1 lb. post peeling)
- 1 small onion, finely chopped (about 1 cup)
- 1.5 teaspoons kosher salt, plus more to taste
- freshly cracked pepper to taste
- 1 pound penne pasta
- 4 ounces fresh mozzarella or fontina cheese, cubed
- 1/2 cup heaping (50 g) grated Parmigiano Reggiano
- 1/2 cup heavy cream
Instructions
- Melt butter in a large heavy pot over moderately high heat until foam subsides. Add sage leaves and cook until fragrant, about 15 seconds. Then, add the cubed butternut squash, diced onion, 1 1/2 cups water, 1 teaspoon kosher salt, and pepper to taste. Simmer, uncovered, stirring occasionally, until the squash is very tender and the water has reduced considerably, about 15 to 20 minutes (depending on the size of the squash pieces).
- If using an immersion blender, purée the mixture directly in the pot until smooth. If you don’t have one, carefully transfer the mixture to a food processor or a standard blender and purée until completely smooth. Taste the sauce and add more salt or pepper if necessary. The finished sauce should be thick enough to coat the back of a spoon. If it is too thin, continue to simmer it over low heat until it thickens to the desired consistency. You should yield about 3 cups of sauce.
- Preheat your oven to 500ºF (260ºC). Bring a large pot of generously salted water (approximately 1 tablespoon kosher salt) to a rolling simmer. Add the penne pasta and boil for exactly 5 minutes (the pasta will be very al dente). Drain the pasta and rinse immediately under cold water to stop the cooking process and prevent sticking. Transfer the par-cooked penne to a large mixing bowl. Pour the butternut squash sauce over the pasta. Add the heavy cream, the cubed mozzarella or fontina, the grated Parmigiano Reggiano, and 1/2 teaspoon of additional salt. Toss gently to ensure all the pasta is evenly coated with the rich sauce and cheeses.
- Lightly butter a shallow 2-quart baking dish (such as a 9×13-inch pan). Transfer the pasta mixture into the prepared pan, spreading it out evenly. Bake in the preheated oven until the pasta is bubbly around the edges and the top is golden brown, about 10 to 15 minutes. If you desire a crispier, more deeply browned top, turn on the broiler for 3 to 5 minutes, keeping a very close watch to prevent burning. Remove from the oven and let it cool slightly for a few minutes before serving. Enjoy your delicious, comforting baked penne!
- Prep Time: 15 minutes
- Cook Time: 40 minutes
- Category: Pasta
- Method: Stovetop/Oven
- Cuisine: American