Apple Butternut Squash Casserole

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Golden slices of apple and tender butternut squash are layered with warm spices, crispy bacon, and a crunchy onion topping in this comforting Apple Butternut Squash Casserole. This fall-inspired dish is both savory and slightly sweet, making it a show-stopping side for any holiday table or cozy weeknight dinner.

Each bite offers a delightful mix of creamy roasted vegetables, crispy texture, and smoky notes. Whether you’re hosting Thanksgiving or just craving hearty seasonal food, this casserole brings satisfying balance and a burst of autumn flavor.

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Why You’ll Love This Apple Butternut Squash Casserole

• Sweet meets savory: Apples and squash pair beautifully with thyme, onions, and bacon.
• Perfect side dish for fall and winter: A great addition to roast dinners or festive spreads.
• Easy to prepare: With simple layers and oven time, this casserole is hassle-free.
• Texture-rich: Creamy base with crispy topping makes it irresistible.
• Customizable: Swap bacon for nuts or breadcrumbs for a vegetarian twist.

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What Apples Work Best for This Casserole?

A firm, slightly tart apple like Honeycrisp, Braeburn, or Granny Smith works wonderfully. These hold up well during baking and balance the natural sweetness of the squash without becoming mushy. If you prefer a sweeter bite, try Fuji or Pink Lady.

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Ingredients for the Apple Butternut Squash Casserole

Butternut Squash: The star of the dish, it brings creaminess and sweetness after roasting.

Apples: Add natural sugar and a fresh, fruity layer to the casserole.

Carrots: For color, depth, and a tender bite.

Bacon: Delivers smoky flavor and a crisp texture contrast.

Crispy Fried Onions: The topping that adds crunch and savory richness.

Fresh Thyme: Provides aromatic earthiness.

Garlic Powder: Enhances the savory undertone.

Olive Oil: Helps with roasting and infusing flavor.

Salt & Pepper: Essential to balance the sweetness.

Panko Breadcrumbs: Optional, for even more texture.

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How To Make the Apple Butternut Squash Casserole

Step 1: Prep the Vegetables

Peel and cut the butternut squash into thin slices or cubes. Core and slice the apples, leaving the peel on for extra texture. Dice the carrots into small chunks.

Step 2: Roast the Base Layer

Toss squash, apples, and carrots with olive oil, garlic powder, salt, pepper, and fresh thyme. Spread evenly in a greased baking dish. Roast at 400°F (200°C) for 25 minutes, uncovered.

Step 3: Add Bacon and Onion Topping

While the base roasts, fry or bake the bacon until crisp. Once cooled, crumble it. Mix the bacon with crispy fried onions (and breadcrumbs if using).

Step 4: Assemble and Bake Again

Remove the dish from the oven. Sprinkle the crispy bacon-onion mixture over the top evenly. Return to the oven for another 15 minutes until golden brown and bubbling.

Step 5: Garnish and Serve

Let it cool slightly before serving. Top with a few fresh thyme sprigs for presentation.

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How to Serve Apple Butternut Squash Casserole

This casserole yields 8 hearty portions, making it ideal for a dinner party or family gathering. Serve it alongside roast turkey, pork tenderloin, or as the main event for a vegetarian-friendly dinner.

Pair it with a crisp green salad or rustic bread to round out the meal.

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How to Store Apple Butternut Squash Casserole

• Refrigerate: Store leftovers in an airtight container for up to 4 days.
• Reheat: Warm individual servings in the microwave or reheat the whole dish in the oven at 350°F (175°C) until warmed through.
• Freeze: You can freeze before baking for up to 2 months. Let thaw in the fridge overnight before baking.

To maintain the topping’s crispiness, store it separately if freezing.

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Frequently Asked Questions

Can I make this casserole vegetarian?
Yes! Omit the bacon and double up on the crispy onion topping or use toasted pecans or walnuts for crunch.

What kind of dish should I use?
A 9×13-inch casserole dish works well. Make sure it’s oven-safe and greased before adding ingredients.

Can I prep it ahead?
Absolutely. You can roast the base vegetables a day in advance and assemble with the topping right before baking.

Is it gluten-free?
Without the panko or if you use gluten-free fried onions and breadcrumbs, yes, it can be made gluten-free.

What other herbs work well?
Sage, rosemary, or parsley are great additions. You can also sprinkle a bit of nutmeg for a holiday touch.

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Want More Casserole Ideas?

If this cozy bake warmed your heart, try some of these other savory favorites:

• Creamy Corn Casserole for a cheesy, buttery bite.
• Mama’s Cornbread Dressing if you’re craving Southern comfort.
• Stuffed Mushroom Casserole for earthy indulgence.
• Tater Tot Casserole with crispy golden tops.
• Meatloaf Casserole for classic, hearty fare.

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Let us know in the comments if you added any twists. Did you try maple syrup or swap in sweet potatoes? We love hearing how you make this recipe your own!

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