Garlic Parmesan Brussels Sprouts Oven-Baked Casserole

Brussels sprouts in a cast iron pan with golden brown cheese topping.

5 from 42 votes

Garlic Parmesan Brussels Sprouts Oven-Baked Casserole

This delicious Garlic Parmesan Brussels Sprouts dish is baked in the oven and turns out an amazing cheesy topping everyone will fight over!

Prep Time5

Cook Time30

Total Time35

Course: Side

Cuisine: American

Servings:

Calories: 438kcal

Author: Kelly Stilwell

Ingredients

¼ cup butter 2.11 oz | 60 g
1 onion small, minced
2 garlic cloves minced
1 ½ pounds brussel sprouts rinsed, trimmed and halved, (appx 600 g)
½ teaspoon sea salt
½ teaspoon ground black pepper

For the sauce

1 ½ cup heavy cream 12.68 fluid oz | 375 ml
1 cup cheddar cheese 4.12 oz | 117 g
½ cup parmesan cheese 1.76 oz | 50 g

Instructions

Pre heat the oven to 395 F | 200 C.
In an ovenproof skillet, add butter and melt on medium heat.
Saute onion and garlic for 1 minute.
Add halved brussel sprouts and cook for about 6 minutes. Stir occasionally until the edges start to crisp.
Pour the heavy cream and half of the cheddar cheese on the brussel sprouts. Stir and cook until the cheese melts. Switch off the stove.
Sprinkle the rest of the cheese on top. Transfer the baking dish in the oven and bake for 15-20 minutes.
Broil for 2-3 minutes to get the cheese a little crispy on top.
Serve with your favorite main dish.

Notes

When selecting Brussels sprouts from the farmer’s market or grocery store, pick the ones that have vibrant green leaves. Stay away from the ones with signs of browning or yellowing. Look for Brussels sprouts with tightly packed leaves. This is a sign they are fresher than ones with loose and curling leaves.

Smaller-sized sprouts have a sweeter flavor. The larger sprouts can often taste bitter. If you’re buying them in packages, make sure they appear dry. Excess moisture can lead to mold.

The best way to store whole sprouts is in the crisper drawer of the fridge. I like to remove them from the package and use paper towels to dab off any moisture. For even cooking, make sure to cut them in half into similar sizes.

Nutrition