Sausage and Brussels Sprouts Casserole

Let’s talk comfort food with a little edge. This Sausage and Brussels Sprouts Casserole is like your favorite warm hug on a plate—creamy, cheesy, and loaded with savory goodness, but with a veggie-packed twist that’ll make you feel a little proud of your dinner choices. We’re talking crispy sausage, tender Brussels sprouts, golden cheese, and just the right amount of spice to keep things exciting.

Whether you’re looking for a cozy weeknight dinner or a crowd-pleasing side dish, this casserole delivers big-time flavor with surprisingly simple ingredients. Trust me, even Brussels sprouts skeptics will be asking for seconds. It’s that good.

Why You’ll Love Sausage and Brussels Sprouts Casserole

One Pan, All the Flavor: Everything cooks up in one dish, so you’re saving time and cleanup.

Balanced and Hearty: It hits that perfect note between indulgent and nutritious, thanks to the combo of sausage and veggies.

Comforting with a Kick: Creamy cheese and savory sausage bring comfort, while garlic, spices, and roasted sprouts keep it exciting.

Meal-Prep Friendly: Make it ahead and enjoy delicious leftovers all week long—it reheats like a dream.

Easy to Customize: Switch up the sausage, add more veggies, or toss in pasta or rice for a twist. Totally flexible!

Ingredients in Sausage and Brussels Sprouts Casserole

(Note: the full ingredients list, including measurements, is provided in the recipe card directly below.)

Brussels Sprouts

These little green gems roast up beautifully, getting tender in the center with crispy, caramelized edges that pair perfectly with savory sausage.

Sausage

Use your favorite kind—spicy Italian, chicken, or smoky kielbasa. It adds a bold, meaty base and infuses every bite with flavor.

Onion & Garlic

Aromatic and savory, they’re the flavor-building duo that kicks things off right.

Cream or Milk

Adds creaminess and ties everything together. You can go full cream for indulgence or use milk for a lighter version.

Cheese

Melty, golden cheese is the final flourish. Think sharp cheddar, mozzarella, or even gouda for a smoky twist.

Olive Oil or Butter

Used for sautéing and roasting. Adds depth and helps crisp up the sprouts.

Seasonings

Salt, pepper, and a little smoked paprika or red pepper flakes to bring a hint of heat and extra depth.

Instructions

Prep the Brussels Sprouts

Trim the ends and halve the sprouts. Toss with olive oil, salt, and pepper. Roast at 400°F for about 15–20 minutes until tender and starting to crisp.

Brown the Sausage

In a skillet, cook the sausage over medium heat until browned and cooked through. Transfer to a paper towel-lined plate to drain excess grease.

Sauté Aromatics

In the same skillet, add a bit of oil if needed and sauté the onions until soft and golden. Add garlic and cook until fragrant—about 30 seconds.

Combine in Casserole Dish

Add roasted sprouts, cooked sausage, sautéed onions, and garlic to a greased casserole dish. Pour in cream or milk and mix gently.

Top with Cheese

Sprinkle generously with shredded cheese. Use your favorite blend—sharp cheddar adds a nice bite, mozzarella gives you that glorious melt.

Bake to Perfection

Bake at 375°F for 15–20 minutes, or until bubbly and golden on top. Let cool for a few minutes before digging in.

Nutrition Facts

Servings: 6
Calories per serving: 330
Total Fat: 24g
Saturated Fat: 9g
Cholesterol: 65mg
Sodium: 620mg
Total Carbohydrates: 10g
Dietary Fiber: 3g
Total Sugars: 3g
Protein: 18g

Nutrition values are approximate and may vary based on sausage type and cheese used.

Preparation Time

Prep Time: 15 minutes
Cook Time: 35 minutes
Total Time: 50 minutes

How to Serve Sausage and Brussels Sprouts Casserole

With Crusty Bread: Scoop it up with a hunk of warm bread to catch every creamy bite.

Next to a Light Salad: Pair it with a lemony arugula salad or something with a bit of crunch and acid to balance the richness.

As a Standalone Meal: It’s hearty enough to serve all on its own, thanks to the sausage and cheese combo.

With a Grain: Serve over rice, quinoa, or couscous to stretch it into even more servings.

Topped with a Fried Egg: Trust me, this is next-level. The richness of the yolk adds something magical.

Additional Tips

Use Pre-Shredded Brussels to Save Time: If you’re in a rush, shredded sprouts cook faster and save on prep time.

Make It Spicy: Use hot Italian sausage or toss in a pinch of crushed red pepper for heat lovers.

Swap in Other Veggies: Cauliflower, kale, or mushrooms are all delicious swaps or additions.

Go Low-Carb: This dish is naturally low in carbs and gluten-free as long as your sausage is compliant.

Double It: This casserole freezes well—make a double batch and freeze one for a busy weeknight.

FAQ Section

Q1: Can I make this casserole ahead of time?
A1: Absolutely! Assemble everything, cover, and refrigerate for up to 24 hours. Bake when ready to serve.

Q2: What kind of sausage works best?
A2: Italian sausage (sweet or spicy) is a classic, but feel free to use turkey, chicken, or smoked sausage based on your preference.

Q3: Can I freeze this casserole?
A3: Yes! Let it cool completely, then freeze in a sealed container. Reheat in the oven at 350°F until warmed through.

Q4: How do I make this dish dairy-free?
A4: Use unsweetened almond milk or a dairy-free cream and swap in vegan cheese or nutritional yeast for the cheesy top.

Q5: Can I use frozen Brussels sprouts?
A5: Fresh is best for roasting, but if using frozen, thaw and dry them well before roasting to avoid sogginess.

Q6: Is this recipe gluten-free?
A6: Yes, as long as your sausage and any added ingredients are gluten-free. Always double-check labels.

Q7: What’s the best cheese for this casserole?
A7: Sharp cheddar, gouda, or fontina are great options. You want something that melts well and adds good flavor.

Q8: Can I add pasta or rice to the casserole?
A8: Definitely! Stir in cooked pasta, rice, or even quinoa to make it extra filling and stretch the servings.

Q9: How do I store leftovers?
A9: Store in an airtight container in the fridge for up to 4 days. Reheat in the oven or microwave until warmed through.

Q10: Can I make this vegetarian?
A10: Yes! Replace the sausage with a plant-based version or use sautéed mushrooms for a savory meatless swap.

Conclusion

This Sausage and Brussels Sprouts Casserole is one of those magical meals that checks all the boxes: hearty, easy, comforting, and downright delicious. Whether you’re making it for a weeknight dinner or serving it at a potluck, it’s a guaranteed hit that brings the cozy vibes every time. So grab your skillet, turn up the oven, and get ready for a dish that’s sure to become a regular in your comfort food rotation.

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