Savory Brussels Sprouts Casserole Recipe
The moment the oven door opens, the sweet‑nutty aroma of roasted Brussels sprouts casserole fills the kitchen, promising cozy comfort.
I first made this on a chilly November evening in my grandma’s farmhouse kitchen, watching the butter melt over fresh sprouts and a sprinkle of grated cheddar.
When the cheese turned golden and the edges crisped, I knew this would become a family favorite. This Brussels Sprouts Casserole quickly became a cherished family favorite.
Why You’ll Love This Brussels Sprouts Casserelle
- Bright green heads turn caramel‑brown, creating a beautiful contrast.
- Nutty, buttery flavor with a hint of toasted cheese.
- Ready in just 45 minutes, perfect for weeknights.
- Foolproof – just toss, bake, and enjoy.
- Ideal for holiday gatherings or cozy family dinners.
Ingredients You’ll Need
- 1 1/2 lbs Brussels sprouts, trimmed and halved
- 2 tbsp olive oil
- 1/2 cup chopped onion
- 2 cloves garlic, minced
- 1/4 cup grated Parmesan cheese
- 1/4 cup breadcrumbs
- 1 tsp dried thyme
- 1/2 tsp salt
- 1/4 tsp black pepper
- 1/4 cup milk
The fresh Brussels sprouts bring a crisp bite, while the creamy cheese sauce binds everything in a velvety hug.
Expert Tips for the Best Brussels Sprouts Casserole
- Halve the sprouts and toss with olive oil – this ensures even caramelization.
- Avoid overcrowding the pan; crowded sprouts steam instead of roast.
- Add a splash of dry white wine to the sauce for depth.
- Look for a bubbling edge and golden top as doneness cues.
- Prepare the casserole a day ahead and refrigerate; bake fresh for best texture.
Variations and Substitutions
Swap the cheese for dairy‑free shreds for a vegan version, add cooked bacon for a smoky protein boost, or stir in a spoonful of Dijon mustard for a bold tang.
How to Store and Reheat
Cool to room temperature, then store in an airtight container in the fridge for up to 4 days. Reheat covered at 350°F for 20 minutes, then uncover to crisp the top. Freeze individual portions for up to 2 months and bake from frozen, adding 10 minutes.
Frequently Asked Questions
Can I use frozen Brussels sprouts?
Yes, thaw and pat them dry first; this prevents excess moisture and keeps the casserole crisp.
What cheese works best?
A blend of sharp cheddar and Gruyère gives both melt and flavor; feel free to experiment with mozzarella for stretch.
Can I make this casserole gluten‑free?
Absolutely – use gluten‑free flour or cornstarch for the sauce and ensure your breadcrumbs are gluten‑free.
I can’t wait for you to try this cozy dish; it’s perfect for sharing love around the table. Happy cooking!
Brussels Sprouts Casserole
🧂 Ingredients
👩🍳 Instructions
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1Preheat oven to 375°F (190°C).
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2In a large skillet, heat olive oil over medium heat. Add onions and cook until translucent, about 3 minutes. Add garlic and cook for 1 minute more.
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3Add Brussels sprouts to the skillet, season with salt, pepper, and thyme, and sauté until they begin to brown, about 5-7 minutes. Stir in milk and cook until the liquid has mostly evaporated. Remove from heat.
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4Transfer the Brussels sprouts to a greased baking dish. Sprinkle grated Parmesan and breadcrumbs evenly over the top.
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5Bake in the preheated oven for 20-25 minutes, or until the topping is golden brown and the sprouts are tender. Remove from oven and let cool slightly before serving.



