This Creamy Delicata Squash Gratin is a cozy, flavor-packed twist on classic gratin recipes. Made with layers of thinly sliced delicata squash, crispy turkey bacon, aromatic garlic and herbs, and a luscious cream and cheese sauce, this dish strikes the perfect balance between comfort and elegance.
Unlike other winter squashes, delicata has a tender, edible skin and a slightly sweet flavor, which means less prep and more flavor payoff. Baked until bubbling and golden, this gratin makes a stunning side dish or a light main course served with a crisp salad.
It’s rich, savory, and herby—without feeling too heavy—and it comes together with simple ingredients that bring warmth and depth to every bite. If you’re looking for a holiday-worthy side or a weeknight dinner upgrade, this squash gratin delivers big flavor with minimal fuss.
Curious about the health benefits and versatility of delicata squash? Visit Wikipedia’s delicata squash article for a closer look at this nutrient-dense, underrated ingredient.
For visual inspiration on layered squash bakes and serving ideas, explore this Pinterest board of squash casserole dishes. Whether you’re making this for fall gatherings or chilly nights at home, it’s sure to impress.

2. Why You’ll Love This Recipe
This Creamy Delicata Squash Gratin with Turkey Bacon, Garlic, and Herbs is the kind of dish that makes you rethink what a side dish can be. It’s comforting, elegant, and incredibly flavorful—all while being approachable enough for weeknight dinners and impressive enough for special occasions. Here’s why this gratin deserves a spot on your table:
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Delicata squash is easy to work with: No peeling needed—the skin becomes tender as it bakes. Simply slice and layer.
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Crispy turkey bacon adds a smoky bite: It gives the dish savory depth without overpowering the delicata’s natural sweetness.
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Herbs and garlic bring aromatic complexity: Thyme and rosemary complement the cream and cheese with earthy, woodsy notes.
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Two cheeses for creamy richness: Parmesan brings salty umami, while Gruyère or mozzarella creates a melty, golden top.
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Lighter than traditional gratins: Using turkey bacon and less cream than typical recipes keeps things rich but not overwhelming.
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Perfectly balanced textures: Soft squash, creamy sauce, crispy topping—each bite has contrast.
This recipe is ideal as a Thanksgiving side, a cozy vegetarian-friendly main (just omit the turkey bacon), or a make-ahead addition to your weekly meal prep.
For more gratin variations and seasonal casserole ideas, check out this Pinterest board of comforting bakes to get inspired by other cheese-and-vegetable combinations. Whether you’re a gratin lover or just discovering delicata squash, this dish delivers both flavor and comfort.
3. Ingredients Overview for Creamy Delicata Squash Gratin
Each ingredient in this gratin plays a key role in building richness, texture, and earthy flavor. Here’s what you need to know about the components:
Main ingredients:
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Delicata squash (2 medium): Thinly sliced with the skin on, this squash offers a sweet, nutty flavor and soft texture when baked—no peeling required.
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Turkey bacon (4 slices, chopped): Adds a smoky, savory element and crisp texture while keeping the dish lighter than pork-based versions.
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Olive oil (1 tbsp): Used for sautéing and helps bind the aromatics with the cream sauce.
Aromatics and herbs:
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Onion (1 small, finely chopped): Forms the base of the sauce, adding sweetness and depth.
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Garlic (3 cloves, minced): Delivers that classic, bold flavor that complements both the squash and the cheese.
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Thyme (1 tsp fresh or ½ tsp dried) and rosemary (1 tsp fresh or ½ tsp dried): These herbs give the gratin a woodsy, autumnal aroma that pairs beautifully with the squash and bacon.
For the creamy sauce:
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Heavy cream (1 cup): Forms the base of the sauce, offering richness and body without overpowering the dish.
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Parmesan cheese (½ cup grated): Adds umami, saltiness, and helps thicken the sauce.
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Salt and black pepper: Balances and sharpens all the other flavors.
For the topping:
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Gruyère or mozzarella (½ cup shredded): Melts beautifully to form a golden, bubbly top layer. Gruyère adds a nutty richness; mozzarella brings stretchy creaminess.
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Breadcrumbs (optional): If used, they add crunch and contrast for a crispy top.
Want to know more about the nutritional value of squash? Explore Wikipedia’s guide to delicata squash to see why it’s a fall favorite. For visual layering tips, check out this Pinterest board on squash gratins.
4. Step-by-Step Instructions: How to Make Delicata Squash Gratin
4.1. Prep and Cook the Bacon and Aromatics
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Preheat oven to 375°F (190°C). Lightly grease a medium baking dish.
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In a skillet over medium heat, cook 4 slices of chopped turkey bacon until browned and crisp. Remove with a slotted spoon and set aside.
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In the same skillet, add 1 tbsp olive oil. Sauté the chopped onion for about 5 minutes until soft.
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Add garlic, thyme, and rosemary. Cook for 1 minute, stirring to avoid browning.
4.2. Make the Cream Sauce
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Pour in 1 cup of heavy cream and bring to a gentle simmer.
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Stir in ½ cup grated Parmesan, a pinch of salt, and freshly ground black pepper.
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Let it simmer for 2–3 minutes, stirring frequently, until slightly thickened. Remove from heat.
4.3. Assemble the Gratin
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Layer half of the thinly sliced delicata squash in the prepared baking dish.
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Spoon over half of the cooked turkey bacon and half of the cream mixture.
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Repeat with the remaining squash, bacon, and cream sauce.
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Top with ½ cup shredded Gruyère or mozzarella. Optionally, sprinkle with a light layer of breadcrumbs.
4.4. Bake
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Cover the dish with foil and bake for 25 minutes.
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Uncover and bake for an additional 15–20 minutes, or until the top is golden and the squash is fork-tender.
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Let rest for 5–10 minutes before serving to allow the sauce to set.
Want to add a fall salad on the side? Try our Roasted Beet and Arugula Salad to balance the richness of this gratin with a fresh, tangy bite.
5. Make-Ahead and Storage Tips
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Make ahead: Assemble the gratin (without baking) up to 1 day in advance. Cover and refrigerate until ready to bake.
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Leftovers: Store in an airtight container in the fridge for up to 3 days. Reheat in a 350°F oven until warmed through.
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Freezing: Not recommended, as cream-based sauces can separate when frozen and reheated.
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Meal prep tip: Cook and slice the squash in advance to save time.
For other make-ahead-friendly casseroles, explore our Comfort Bake Collection for recipes that hold up beautifully in the fridge.

6. Recipe Variations
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Make it vegetarian: Simply omit the turkey bacon for a meatless option—the gratin is still rich and flavorful without it.
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Add greens: Layer in sautéed spinach or kale for a veggie boost.
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Swap cheeses: Use white cheddar, fontina, or smoked gouda in place of Gruyère or mozzarella for different flavor notes.
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Add spice: Stir a pinch of crushed red pepper flakes into the cream sauce for a little kick.
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Try other squashes: This method also works with butternut squash or acorn squash, though they require peeling.
Want to see other herb-cheese combos? Browse this Pinterest board of savory squash dishes to explore delicious fall flavors.
7. Pro Tips for the Best Gratin
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Slice squash thinly and evenly: Use a mandoline or sharp knife to ensure even cooking.
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Don’t skip the rest time: Letting the gratin sit after baking helps the sauce thicken and flavors meld.
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Use fresh herbs if possible: They bring brighter, more fragrant flavors than dried versions.
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Keep the cream at a gentle simmer: Overheating can cause it to break or reduce too much.
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Cover with foil at first: This ensures the squash cooks through without over-browning the top.
Curious about how gratins differ across cuisines? Learn more on Wikipedia’s gratin article for a global view of this beloved baked dish.
8. How to Serve Delicata Squash Gratin
This gratin can be a hearty side dish or the star of a lighter meal. Here are some serving ideas:
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As a side: Serve alongside roast chicken, grilled pork chops, or seared salmon.
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As a vegetarian main: Pair with a simple green salad and crusty bread for a satisfying meatless dinner.
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On a holiday table: This dish holds its own next to classics like stuffing and mashed potatoes.
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With eggs: Reheat leftovers and serve with a poached or fried egg for a delicious brunch option.
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Topped with herbs: Garnish with fresh parsley or thyme leaves for a pop of color and freshness.
Explore this Pinterest board of fall vegetable casseroles to see more creative ways to serve and style gratin dishes.
9. Nutrition Breakdown (Optional)
Estimated per serving (6 servings):
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Calories: 330–360
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Protein: 10–12g
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Fat: 26–28g
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Carbohydrates: 15–18g
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Fiber: 2–3g
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Sodium: 400–500mg
Reduce calories by using half-and-half instead of heavy cream, or cut back on cheese and bacon.

10. FAQs – People Also Ask
Q1: Do I need to peel delicata squash?
No! The skin becomes soft and edible when baked. Just wash well before slicing.
Q2: Can I make this ahead of time?
Yes. Assemble the gratin up to 24 hours in advance, cover, and refrigerate. Bake as directed when ready.
Q3: What cheese works best in this gratin?
Gruyère is ideal for a nutty, melty top. Mozzarella works for a milder flavor. Parmesan in the sauce adds saltiness and body.
Q4: Can I use milk instead of heavy cream?
You can substitute half-and-half or whole milk, but the sauce will be thinner and less rich. Avoid low-fat milk for best texture.
Q5: What’s a good substitute for turkey bacon?
You can use regular bacon, pancetta, or even vegetarian bacon alternatives depending on your preference.

Creamy Delicata Squash Gratin with Bacon Garlic and Herbs
Ingredients
- 2 medium delicata squash halved lengthwise, seeded, and thinly sliced
- 4 slices turkey bacon chopped
- 1 tbsp olive oil
- 1 small onion finely chopped
- 3 cloves garlic minced
- 1 tsp fresh thyme leaves or ½ tsp dried thyme
- 1 tsp chopped fresh rosemary or ½ tsp dried rosemary
- Salt and black pepper to taste
- 1 cup heavy cream
- ½ cup grated Parmesan cheese
- ½ cup shredded Gruyère or mozzarella cheese
- Optional: breadcrumbs for topping
Method
- Preheat oven to 375°F (190°C). Lightly grease a baking dish.
- In a skillet over medium heat, cook chopped turkey bacon until browned and crisp. Remove from skillet and set aside.
- In the same skillet, add olive oil and sauté the onion until softened, about 5 minutes. Add garlic, thyme, and rosemary, and cook for 1 more minute.
- Add the cream to the skillet and bring to a gentle simmer. Stir in Parmesan cheese, salt, and pepper. Cook until slightly thickened, about 2–3 minutes. Remove from heat.
- In the prepared baking dish, layer half of the sliced delicata squash. Top with half of the cooked turkey bacon and half of the cream mixture. Repeat with the remaining squash, bacon, and cream.
- Sprinkle the top with shredded Gruyère (or mozzarella) and, if using, a light layer of breadcrumbs.
- Cover with foil and bake for 25 minutes. Uncover and bake for another 15–20 minutes until golden and bubbling.
- Let rest for 5–10 minutes before serving.