Golden cubes of roasted butternut squash meet sizzling sausage and melty cheese in this heartwarming Cheesy Butternut Squash Casserole. It’s a comforting blend of savory and sweet with cozy notes of sage and crispy, bubbly edges that bring every bite to life.


Whether you’re prepping a Thanksgiving side dish or just want a soul-satisfying dinner idea, this casserole delivers big flavor with simple ingredients. It’s perfect for chilly evenings, easy enough for weeknights, and special enough to impress your guests.
What Kind of Sausage Works Best in This Casserole?
You can use any sausage you love—pork, turkey, or even spicy Italian. A breakfast sausage gives a subtle sweetness, while hot Italian sausage adds a bolder kick. Just make sure it’s fully cooked and crumbled before baking it into the casserole.
Ingredients for the Cheesy Butternut Squash Casserole
- Butternut Squash: The star of the show. Its natural sweetness and tender texture balance the richness of the cheese and sausage.
- Ground Sausage: Adds a savory, meaty bite that complements the squash beautifully.
- Mozzarella Cheese: For that gooey, melty magic that binds everything together.
- Parmesan Cheese: Offers a salty, nutty layer of flavor.
- Fresh Sage Leaves: Adds a fragrant earthiness that pairs so well with squash.
- Olive Oil: Helps roast the squash to golden perfection.
- Salt & Black Pepper: Simple but essential to bring all the flavors to life.
How To Make the Cheesy Butternut Squash Casserole
Step 1: Roast the Squash
Preheat your oven to 400°F. Toss cubed butternut squash with olive oil, salt, and pepper. Spread it on a baking sheet and roast for 25-30 minutes until tender and slightly caramelized.
Step 2: Cook the Sausage
In a skillet over medium heat, cook the ground sausage until browned and fully cooked. Break it up with a spoon as it cooks. Drain excess grease.
Step 3: Combine and Layer
In a large mixing bowl, combine the roasted squash and cooked sausage. Stir in shredded mozzarella and half of the Parmesan cheese. Mix until well combined.
Step 4: Bake to Perfection
Transfer the mixture into a greased casserole dish. Top with the remaining Parmesan and garnish with whole sage leaves. Bake uncovered at 375°F for 20 minutes, or until cheese is melted and bubbly.

Serving and Storing This Butternut Squash Casserole
This casserole is best enjoyed warm, straight from the oven when the cheese is perfectly gooey. To store leftovers, let the dish cool completely and transfer to an airtight container. Refrigerate for up to 4 days or freeze for up to 2 months. Reheat in the oven to retain its texture.
What to Serve With Cheesy Butternut Squash Casserole?
Roasted Brussels Sprouts
The bitterness of Brussels sprouts balances the richness of the casserole.
Garlic Bread
A crisp, buttery side to mop up any cheesy goodness left on your plate.
Cranberry Sauce
A tart contrast that brings brightness to the meal—especially around the holidays.
Creamy Tomato Basil Soup
Warm and comforting, this soup turns your plate into a hearty dinner combo.
Apple Arugula Salad
Fresh, peppery greens with apple slices bring a crisp and refreshing bite.
Deviled Eggs
A classic Southern favorite that rounds out any cozy gathering.
Want More Casserole Ideas?
If this Cheesy Butternut Squash Casserole has you craving more bubbly bakes, check these out from Savor Queen:
- Chicken Crescent Roll Casserole for a buttery, creamy family favorite.
- Crab Casserole when you’re in the mood for something creamy and coastal.
- Hashbrown Chicken Casserole for breakfast-for-dinner vibes.
- Runza Casserole for a hearty Midwestern twist.
- French Onion Chicken Rice Casserole for those craving deep, savory flavor.
Save This Pin For Later
Save this cozy, melty idea to your favorite Pinterest board so you can come back to it whenever you need a feel-good comfort meal.
Tried it with a twist? Maybe added some spinach or used turkey sausage? I’d love to hear what made it yours—drop your tips or questions in the comments.
Need more inspiration? Explore my daily kitchen creations on SavorQueen.com on Pinterest. Your next favorite might be waiting there.
Cheesy Butternut Squash Casserole
- Total Time: 60 minutes
- Yield: 4 servings
Description
This Cheesy Butternut Squash Casserole is the ultimate comfort dish that brings together roasted butternut squash, savory sausage, and melty mozzarella cheese in one bubbling, golden-baked masterpiece. It’s perfect for cozy weeknight dinners or holiday tables alike. The balance of sweet squash and bold sausage wrapped in cheesy goodness makes it irresistible. Whether you’re looking for easy dinner ideas, warm winter food ideas, or hearty casseroles that feel like a hug in a dish—this recipe delivers on all fronts. Quick to prep and rich in flavor, it’s an easy recipe that works for both breakfast ideas and dinner ideas.
Ingredients
2 cups cubed butternut squash
1 tablespoon olive oil
1 teaspoon salt
1/2 teaspoon black pepper
1/2 pound ground sausage
1 cup shredded mozzarella cheese
1/3 cup grated Parmesan cheese
6 fresh sage leaves
Instructions
1. Preheat oven to 400°F. Toss butternut squash with olive oil, salt, and pepper. Roast on a baking sheet for 25–30 minutes until tender and lightly browned.
2. While squash is roasting, cook ground sausage in a skillet over medium heat until browned. Drain excess grease.
3. In a mixing bowl, combine roasted squash, cooked sausage, mozzarella, and half of the Parmesan. Mix well.
4. Transfer to a greased baking dish. Sprinkle with remaining Parmesan and top with sage leaves.
5. Bake at 375°F for 20 minutes until cheese is bubbly and golden. Serve hot.
Notes
Be sure to roast the squash until slightly caramelized—this deepens the flavor.
For extra creaminess, stir in a dollop of ricotta or cream cheese before baking.
- Prep Time: 10 minutes
- Cook Time: 50 minutes
- Category: Casserole
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 serving
- Calories: 390
- Sugar: 4g
- Sodium: 670mg
- Fat: 28g
- Saturated Fat: 11g
- Unsaturated Fat: 15g
- Trans Fat: 0g
- Carbohydrates: 16g
- Fiber: 3g
- Protein: 17g
- Cholesterol: 55mg
Keywords: easy dinner, casserole, cheesy butternut squash, fall recipe, comfort food
