Cheesy Brussels Sprout Casserole: The Ultimate Holiday Side
A festive, flavor-packed Brussels sprout casserole crowned with cheese and bacon—delicious enough to convert anyone, perfect for holidays.

Brussels sprouts are often overlooked at the holiday table, but this cheesy casserole is here to change their reputation. Baked in a rich, creamy sauce and topped with crispy bacon, this 30-minute recipe is not just perfect for Thanksgiving—it’s an irresistible comfort dish for any festive gathering or weeknight dinner.
Why Brussels Sprouts Deserve a Spotlight
With their earthy, nutty, and slightly sweet flavor, brussels sprouts shine in hearty casseroles. Even skeptics often change their minds when they experience sprouts enveloped in cream and cheese. This dish has earned glowing praise from holiday cooks:
- “Made this dish for Thanksgiving and it was so fantastic that I was asked to bring it for Christmas dinner as well. Looks like we have a new family holiday tradition!” – Cyan Bottle
- “I can and am eating this for dinner by itself! It’s amazing. I made it for Thanksgiving and it never even made it to the dinner table, gone way before!” – peachy_y
What Makes This Casserole Stand Out?
- One-skillet preparation: Minimal cleanup and maximum flavor.
- Cheesy, creamy sauce: Classic pairing for savory brussels sprouts.
- Crispy bacon topping: Adds crunch and smoky depth.
- Fast and festive: Ready in just 30 minutes, perfect for busy holiday schedules.
Ingredients You’ll Need
| Ingredient | Purpose |
|---|---|
| Bacon slices | Salty, smoky crunch |
| Unsalted butter | Rich flavor base |
| Shallots, finely chopped | Mild onion flavor |
| Brussels sprouts, halved | Main vegetable |
| Kosher salt & cayenne pepper | Seasoning heat & balance |
| Heavy cream | Creamy sauce texture |
| Shredded Gruyère cheese | Nutty, melty character |
| Shredded sharp white cheddar | Tangy, bold cheesy note |
Simple pantry staples yield complex, satisfying flavor.
Step-By-Step Preparation
- Start with bacon: Begin in a cold oven-safe skillet for maximum crispiness. Cook bacon until golden, drain on paper towels, and chop coarsely. Reserve the bacon fat or discard.
- Sauté aromatics: Add butter to the same skillet and cook chopped shallots until softened and fragrant.
- Cook Brussels sprouts: Toss in halved sprouts and season with salt and cayenne. Sauté until firm-tender, about 10 minutes. The sprouts will finish cooking in the oven.
- Layer the casserole: With the skillet off the heat, pour heavy cream over the sprouts. Sprinkle Gruyère and cheddar evenly, then top with chopped bacon.
- Bake: Transfer skillet to the oven and bake at 375°F until the sauce bubbles and cheese browns in spots (12–15 minutes). For an extra-toasty finish, broil briefly if desired.
Serving Suggestions
This casserole shines alongside classic holiday mains:
- Crock-Pot brown sugar glazed ham
- Classic roast turkey
- Roasted chicken with apple and cranberry
- Pulled pork or pork loin roasts
- Vegetarian potluck spreads (as a hearty, savory option)
Its comforting, cheesy texture pairs beautifully with other fall favorites and is versatile enough for weeknight dinners.
Make-Ahead Tips and Storage
Leftovers keep well: Store in an airtight container in the refrigerator for up to three days. Reheat gently in the oven to restore the crispy, cheesy top.
- If making ahead, assemble sprouts, sauce, and cheese, but bake just before serving for best texture.
- Freeze portions after baking if needed, but the creamy sauce is best fresh.
Ingredient Substitutions & Variations
- Cheese alternatives: Swap Gruyère for Swiss, or cheddar for fontina, for different flavor profiles.
- No bacon? Try pancetta or vegetarian bacon crumbles.
- Cream options: Substitute half-and-half or a blend of milk and cream for a lighter base.
- Spice it up: Add a pinch of smoked paprika for depth or diced jalapeños for heat.
Always taste for seasoning before baking, and adjust salt and pepper as needed.
Similar and Complementary Thanksgiving Recipes
- Best Pumpkin Pie – classic ending to any holiday meal.
- Chocolate Pie Cookies – fun, fast dessert bites.
- Pecan Pie Cheesecake Bars – decadent and shareable.
- Green Bean Casserole – beloved for its creamy, crispy topping.
- Apple Crumble Pie – perfect for autumn feasts.
- Caramel Apple Pie – rich, sweet fruit dessert.
- Ham Glaze – for irresistibly moist and flavorful ham.
Pair this brussels sprout casserole with any of these sides or desserts to craft a memorable Thanksgiving menu or a comforting fall dinner.
Expert Tips for Perfect Brussels Sprout Casserole
- Smaller sprouts: Offer sweeter flavor and cook evenly.
- Start bacon cold: Ensures crispy texture and even rendering.
- Use fresh cheeses: For maximum melting and flavor.
- Don’t overcook sprouts: Sauté just until firm-tender; they’ll finish in the oven.
- Broil at the end: For a beautifully browned cheese crust.
Nutritional Information (Approximate Per Serving)
| Nutrient | Amount |
|---|---|
| Calories | 260 |
| Protein | 9g |
| Carbohydrates | 13g |
| Fat | 19g |
| Sodium | 540mg |
This casserole is filling and rich, ideal for special occasions and as a substantial side dish.
Frequently Asked Questions (FAQ)
Q: Can I use frozen brussels sprouts?
A: Yes, thaw and dry frozen brussels sprouts first, then halve, sauté and bake as directed for best texture.
Q: Is this casserole gluten-free?
A: Absolutely, the recipe uses no flour and is completely gluten-free as written.
Q: What if I don’t have Gruyère cheese?
A: Substitute with Swiss cheese for similar melt and mild flavor, or use more cheddar for a sharper taste.
Q: How do I make it vegetarian?
A: Omit the bacon or use vegetarian bacon alternatives; be sure to adjust seasoning for smoky depth.
Q: Can leftovers be frozen?
A: Yes, but for best flavor, freeze after baking and reheat in the oven to restore crispness and sauce consistency.
Holiday Hosting Tips: Save Oven Space
This casserole is flexible: bake ahead and reheat or use the broiler for a speedy finish. It’s ideal for minimizing oven time during hectic holiday meal prep, especially when paired with other sides that cook on the stovetop or slow cooker.
- Consider doubling the recipe for larger groups—it goes fast!
- Use a cast iron skillet for best oven-to-table style and optimal browning.
“These Thanksgiving recipes require no oven space”—a lifesaver for busy hosts!
Recipe Card: Cheesy Brussels Sprout Casserole
- Prep time: 10 minutes
- Cook time: 20 minutes
- Total time: 30 minutes
- Servings: 6–8
Ingredients:
- 6 slices bacon
- 3 tbsp unsalted butter
- 2 small shallots, finely chopped
- 2 lbs brussels sprouts, halved
- Kosher salt, to taste
- ½ tsp cayenne pepper
- ¾ cup heavy cream
- ½ cup shredded Gruyère
- ½ cup shredded sharp white cheddar
Directions:
- Preheat oven to 375°F. Start bacon in a cold, oven-safe skillet. Cook until crisp; drain, chop, and set aside.
- In the same skillet, melt butter over medium heat, add shallots, and sauté until soft.
- Add brussels sprouts. Season with salt and cayenne; cook until firm-tender, about 10 minutes.
- Remove from heat. Pour cream over sprouts; sprinkle with Gruyère and cheddar. Top with bacon.
- Bake 12–15 minutes, until sauce bubbles and cheese is golden. Broil for 1–2 minutes for extra browning if desired.
- Serve hot, garnished with extra cheese or fresh herbs if preferred.
Conclusion: The New Holiday Classic
Cheesy Brussels Sprout Casserole combines traditional flavors with contemporary convenience, promising to convert even the most ardent brussels sprouts skeptics. Make it once and it may well become your family’s new holiday tradition—plus, it’s so delicious you’ll want to serve it all fall and winter long.










