Butternut Squash Sausage Lasagna

Golden bubbly butternut squash sausage lasagna fresh from the oven with melted mozzarella Pin It
Golden bubbly butternut squash sausage lasagna fresh from the oven with melted mozzarella | spoonfulsaga.com

This comforting layered bake brings together the natural sweetness of roasted butternut squash with savory Italian sausage for a perfect autumn meal. The dish features three cheeses—creamy ricotta, melted mozzarella, and nutty Parmesan—layered between tender noodles and rich tomato sauce.

The preparation involves roasting diced squash until caramelized, browning sausage with aromatic onions and garlic, then assembling everything in a classic lasagna structure. After about 90 minutes from start to finish, you'll have six servings of bubbling, golden goodness that pairs beautifully with a crisp green salad and robust red wine.

The first time I made this lasagna, it was a complete experiment born from an excess of butternut squash from my CSA box. I wasn't expecting the way the sweet roasted squash would melt into the savory sausage and tomato sauce, creating something that felt both entirely new and comfortingly familiar. My husband took one bite and declared it the best lasagna he'd ever had, and I've been making it on repeat every autumn since.

Last November, I brought this to a friend's Thanksgiving potluck, and honestly, I was nervous it would seem too unconventional. But when people kept asking who brought the lasagna and going back for seconds, I knew it wasn't just me who fell in love with this combination. The nutmeg in the sausage mixture was my grandmother's trick for adding warmth to meat dishes, and it works beautifully here.

Ingredients

  • Butternut squash: Roasting it first concentrates the natural sweetness and gives you those caramelized edges that melt into the layers
  • Italian sausage: I use mild for family dinners, but spicy adds this wonderful warmth that cuts through the creamy cheese
  • Ricotta mixture: Beating the egg into the ricotta makes it silkier and prevents it from becoming grainy
  • No-boil noodles: These save so much time and actually hold up better than pre-cooked noodles in all that moisture

Instructions

Roast the squash:
Toss diced butternut squash with olive oil, salt, and pepper, then roast at 200°C until tender and lightly golden. Let it cool slightly while you prep everything else.
Cook the sausage:
Sauté onions until soft, add garlic for thirty seconds, then brown the sausage breaking it up. Stir in oregano, sage, and nutmeg until fragrant.
Prep the ricotta:
Mix ricotta with egg, half the Parmesan, salt, and pepper until smooth and creamy.
Layer it up:
Start with sauce, then noodles, then distribute ricotta, sausage, squash, mozzarella, and more sauce. Repeat twice, ending with noodles topped with remaining sauce and both cheeses.
Bake until bubbly:
Cover and bake at 180°C for 30 minutes, then uncover and bake until the cheese is golden and you can see the sauce bubbling up the sides. Let it rest before cutting.
Savory layered butternut squash sausage lasagna showcasing roasted squash, Italian sausage, and creamy ricotta Pin It
Savory layered butternut squash sausage lasagna showcasing roasted squash, Italian sausage, and creamy ricotta | spoonfulsaga.com

This recipe has become my go-to when someone needs a meal that feels like a hug. I've delivered it to new parents, sick friends, and stressed neighbors, and every single person has asked for the recipe afterward.

Making It Ahead

You can assemble the entire lasagna up to 24 hours before baking, just wrap it tightly and keep it refrigerated. The noodles absorb some of the moisture as it sits, which actually makes the final texture even better.

Freezing Instructions

Freeze before baking, wrapping well in plastic then foil. Thaw overnight in the refrigerator, or bake from frozen adding about 20-25 minutes to the covered baking time.

Serving Suggestions

A crisp green salad with balsamic vinaigrette cuts through the richness beautifully. I also love serving this with crusty garlic bread to soak up any extra sauce that escapes the layers.

  • Let it rest the full 15 minutes, even if the smell is killing you
  • The nutmeg might seem unusual, but it bridges the sweet squash and savory sausage
  • This makes excellent leftovers and actually improves overnight
Hearty butternut squash sausage lasagna slice displaying tender pasta, sweet squash, and browned sausage Pin It
Hearty butternut squash sausage lasagna slice displaying tender pasta, sweet squash, and browned sausage | spoonfulsaga.com

There's something so satisfying about bringing this bubbling dish to the table and watching everyone's faces light up when that first steamy slice is served.

Common Questions

Absolutely. You can assemble the entire dish up to 24 hours in advance, cover tightly, and refrigerate. When ready to bake, add 5-10 minutes to the covered baking time since it will be cold.

Sweet potato, pumpkin, or even delicata squash work wonderfully. The key is maintaining that sweet, earthy element that balances the savory sausage and rich cheese.

Cool completely, then cover tightly or transfer to an airtight container. It will keep in the refrigerator for 3-4 days. Reheat individual portions in the microwave or larger portions in a 180°C (350°F) oven until heated through.

Yes, either freeze before baking or freeze leftovers. Wrap tightly in plastic and foil, then freeze for up to 3 months. Thaw overnight in the refrigerator before baking or reheating.

Roasting concentrates the natural sugars and creates caramelized edges, adding depth of flavor that steaming or boiling can't achieve. This sweetness provides essential balance to the spicy sausage and tangy tomato sauce.

Simply omit the sausage and add sautéed mushrooms, spinach, or plant-based crumbles. You might want to increase the squash quantity or add another vegetable layer to maintain the hearty texture.

Butternut Squash Sausage Lasagna

A hearty Italian-inspired layered bake featuring sweet roasted squash, savory sausage, and three cheeses.

Prep 35m
Cook 55m
Total 90m
Servings 6
Difficulty Medium

Ingredients

Vegetables

  • 1 medium butternut squash (about 2 lbs), peeled, seeded, and diced
  • 2 tablespoons olive oil
  • 1 small yellow onion, finely chopped
  • 2 cloves garlic, minced
  • Kosher salt and freshly ground black pepper, to taste

Meats

  • 1 lb Italian sausage (mild or spicy), casings removed

Dairy

  • 14 oz ricotta cheese
  • 8 oz mozzarella cheese, shredded
  • 2 oz Parmesan cheese, grated
  • 1 large egg

Pasta

  • 9-12 no-boil lasagna noodles (or regular, pre-cooked)

Sauce

  • 3 cups good-quality tomato sauce or marinara

Seasonings & Herbs

  • 1 teaspoon dried oregano
  • 1/2 teaspoon dried sage or thyme
  • 1/4 teaspoon ground nutmeg
  • Fresh basil (for garnish, optional)

Instructions

1
Roast the Butternut Squash: Preheat oven to 400°F. Toss butternut squash with 1 tablespoon olive oil, salt, and pepper. Spread on a baking sheet and roast for 20-25 minutes, until tender and lightly caramelized. Reduce oven to 350°F.
2
Sauté Aromatics: While the squash roasts, heat remaining olive oil in a large skillet over medium heat. Add onions and cook until translucent, about 3-4 minutes. Add garlic and cook for another 30 seconds.
3
Brown the Sausage: Add sausage to the skillet. Cook, breaking up with a spoon, until browned and cooked through. Stir in dried oregano, dried sage, and a pinch of nutmeg. Remove from heat.
4
Prepare the Squash: Mash roasted butternut squash lightly with a fork, leaving some chunks for texture.
5
Make the Ricotta Filling: In a bowl, mix ricotta with egg, half the Parmesan, salt, and pepper until well combined.
6
Begin Assembly: Lightly oil a 9x13-inch baking dish. Spread 1/2 cup tomato sauce on the bottom. Layer 3-4 noodles over the sauce.
7
Build First Layer: Spread one-third of the ricotta mixture over noodles, add one-third of the sausage mixture, one-third of the butternut squash, a handful of mozzarella, and about 1/3 cup tomato sauce.
8
Complete Layering: Repeat layers twice more: noodles, ricotta, sausage, squash, mozzarella, sauce. Finish with a final layer of noodles, the remaining sauce on top, and scatter with the rest of the mozzarella and Parmesan.
9
Bake Covered: Cover with foil (sprayed with oil to prevent sticking). Bake at 350°F for 30 minutes.
10
Brown and Finish: Remove foil and bake an additional 15-20 minutes until cheese is golden and bubbling. Cool for 10-15 minutes before slicing. Garnish with fresh basil if desired.
Additional Information

Equipment Needed

  • Chef's knife
  • Roasting tray
  • Large skillet
  • Mixing bowls
  • 9x13-inch baking dish
  • Aluminum foil

Nutrition (Per Serving)

Calories 540
Protein 27g
Carbs 45g
Fat 28g

Allergy Information

  • Contains wheat (gluten)
  • Contains egg
  • Contains milk (dairy)
  • Sausage may contain other allergens (check labels)
Audrey Bennett

Audrey shares approachable, flavorful recipes and practical kitchen wisdom for fellow food lovers.