Apple Butternut Squash Casserole with Cozy Flavor

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This Apple Butternut Squash Casserole brings together sweet, savory, and smoky in a heartwarming dish that screams autumn comfort. Tender roasted butternut squash and crisp apple slices are layered with smoky bacon, caramelized onions, a sprinkle of thyme, and topped with a buttery breadcrumb crust. Whether you’re preparing for a holiday feast or simply need a cozy side dish, this casserole delivers on flavor and texture.

The natural sweetness of the apples balances beautifully with the nutty depth of butternut squash, while the savory bacon and herbs keep every bite interesting. This dish is hearty enough to be the star of your plate, yet versatile enough to complement roasted meats, poultry, or vegetarian mains.

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Why You’ll Love This Apple Butternut Squash Casserole

• Perfect balance of flavors: Sweet apples, savory bacon, and earthy squash are made for each other.
• Easy prep: Simple steps with rustic ingredients make this a breeze to pull together.
• Great for gatherings: Feeds a crowd and looks beautiful on the table.
• Versatile: Works as a holiday side or a comforting weeknight dinner.

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What Kind of Apples Should I Use?

For the best results, use crisp, slightly tart apples like Honeycrisp, Pink Lady, or Braeburn. These hold their shape during baking and offer a nice contrast to the soft squash. Avoid overly soft varieties like Red Delicious, as they tend to become mushy in the oven.

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Ingredients for the Apple Butternut Squash Casserole

Each ingredient in this dish plays a unique role in creating its comforting flavor and irresistible texture:

• Butternut Squash: The star of the casserole, it brings a creamy, slightly sweet base once roasted.
• Apples: Thinly sliced for tender sweetness and a pop of freshness.
• Bacon: Adds a savory crunch and smoky depth that elevates the whole dish.
• Onion: Sautéed until golden for a rich, slightly sweet background flavor.
• Fresh Thyme: Brings an herby brightness that ties everything together.
• Breadcrumbs: For a crunchy, golden topping that contrasts beautifully with the tender ingredients.
• Butter: Used for sautéing and in the breadcrumb topping to add richness.
• Salt & Pepper: Essential for seasoning and bringing out all the flavors.

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How To Make the Apple Butternut Squash Casserole

Step 1: Prepare and Roast the Squash

Peel, seed, and cube the butternut squash. Toss with olive oil, salt, and pepper, then roast at 400°F until fork-tender and lightly caramelized, about 25-30 minutes.

Step 2: Cook the Bacon and Onions

In a skillet, cook chopped bacon until crisp. Remove and drain on paper towels. In the same pan, sauté diced onions in a bit of the bacon fat until they turn golden and soft.

Step 3: Assemble the Layers

In a greased baking dish, layer the roasted squash and sliced apples. Top with the cooked onions, bacon, and sprigs of fresh thyme.

Step 4: Add the Topping

Combine breadcrumbs with melted butter, a pinch of salt, and scatter over the top for that crispy finish.

Step 5: Bake to Golden Perfection

Bake uncovered at 375°F for 20-25 minutes until the top is golden brown and everything is bubbling and heated through.

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How to Serve and Store Apple Butternut Squash Casserole

This casserole serves about 6 to 8 people as a side dish, making it perfect for family dinners, holiday tables, or fall potlucks. Serve it warm straight from the oven, ideally with a sprinkle of extra thyme on top for color and aroma.

To store, let the casserole cool completely before covering and refrigerating. It will keep well for up to 4 days. Reheat in the oven at 350°F for best texture, or use the microwave for a quicker option.

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What to Serve With Apple Butternut Squash Casserole

Roasted Chicken

A simple herb-roasted chicken pairs beautifully with this casserole, creating a hearty and wholesome meal.

Glazed Ham

The sweetness of honey-glazed ham complements the apples and squash, making this duo holiday-worthy.

Quinoa Pilaf

For a vegetarian option, pair it with a nutty quinoa pilaf with cranberries or almonds.

Maple-Glazed Carrots

Keep the fall vibes going with tender, maple-glazed carrots that echo the sweetness in the casserole.

Green Salad with Balsamic Vinaigrette

A crisp salad helps balance the richness of the dish and adds a refreshing bite.

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Frequently Asked Questions

Can I make this casserole ahead of time?
Yes! Assemble the casserole a day in advance (minus the breadcrumb topping), cover, and refrigerate. When ready to bake, add the topping and bake as directed.

Can I use frozen butternut squash?
You can, but fresh squash gives a better texture and flavor. If using frozen, thaw and pat dry before roasting to avoid excess moisture.

What can I substitute for bacon?
For a vegetarian version, try smoked tempeh or skip it altogether and add toasted walnuts or pecans for crunch.

How do I keep apples from getting mushy?
Choose firm apples like Honeycrisp or Pink Lady and slice them no thinner than ¼ inch. This helps them hold their shape during baking.

Can I freeze this casserole?
Yes, though the texture may change slightly upon reheating. Freeze the baked casserole (cooled completely), wrapped well. Reheat in the oven at 350°F until warmed through.

For more fall-friendly dishes, check out our Savory Sweet Potato Gratin or Cranberry Walnut Stuffed Acorn Squash recipes!

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