When it comes to hearty and wholesome side dishes, few can compete with the robust flavors and nutritious content of a brussel sprout casserole. Whether you're aiming to please a crowd with a holiday spread or just elevating your everyday meals, this earthy and slightly sweet dish is a perfect addition to any table. This step-by-step guide ensures you create a brussel sprout casserole that's not just flavorful but also maintains the integrity of this vivid green vegetable, stepping it up from mild-mannered sidekick to superfood star.

Brussel Sprout Casserole


Ingredients and Quantities

To start off, ensure you have all the necessary ingredients ready before you begin the preparation process. Here’s a list of what you'll need for a standard recipe:

For the Casserole

  • 2 pounds Brussels sprouts, ends trimmed and halved
  • 1 tablespoon olive oil
  • Salt and pepper to taste
  • 1 small onion, finely chopped
  • 2 cloves garlic, minced
  • 1 cup vegetable broth
  • 1 cup heavy cream (or almond milk for a lighter version)
  • 1 cup shredded cheese (such as Gruyere, cheddar, or parmesan)
  • 1 cup bread crumbs (or almond flour for a gluten-free alternative)
  • Cooking spray or butter for greasing the casserole dish

For the Topping

  • 1 cup sliced almonds
  • 2 tablespoons butter, melted
  • 1/2 cup panko bread crumbs
  • 1/4 cup parmesan cheese, grated

Preparing the Brussel Sprouts

Properly preparing your brussel sprouts is essential for the perfect casserole texture and flavor. Follow these steps:

Step 1: Clean and Trim

Begin by washing the Brussels sprouts thoroughly. Trim the stem ends of the sprouts and remove any yellowed or wilted outer leaves.

Step 2: Halve the Sprouts

Cut each sprout in half lengthwise. If you have particularly large sprouts, you may need to quarter them for even cooking.

Step 3: Season and Roast

Toss the sprouts with olive oil, salt, and pepper. Place them on a baking sheet in a single layer and roast in a 400°F oven for about 20-25 minutes or until they are tender and golden brown, stirring once or twice during roasting for even cooking.

Creating the Casserole

Now that the Brussels sprouts are ready, it's time to assemble the casserole. Here's what you need to do:

Step 1: Layering in the Dish

Layer the roasted Brussels sprouts in a greased casserole dish. If you prefer, you can mix the sprouts with cooked onions and garlic before placing them in the dish for a more integrated flavor.

Step 2: Preparing the Sauce

In a saucepan, sauté the chopped onion and minced garlic until translucent. Add the vegetable broth and bring to a simmer. Then stir in the heavy cream (or almond milk for a lighter version) and season with salt and pepper. Cook for a few minutes until the mixture thickens slightly.

Step 3: Layer Sauce and Cheese

Pour the cream sauce over the Brussels sprouts in the casserole dish. Sprinkle with the shredded cheese, ensuring an even distribution across the top.

Topping the Casserole

The topping adds a satisfying crunch and an extra layer of flavor to your brussel sprout casserole.

Step 1: Preparing the Crumb Topping

Melt the butter and mix in the bread crumbs and parmesan cheese. If you’re using the almond flour instead of bread crumbs, mix it with the butter and cheese for a similar effect.

Step 2: Add the Topping

Sprinkle the crumb mixture over the casserole. This layer should be relatively thin but cover the entire surface to prevent drying out of the cheese and Brussels sprouts.

Baking the Casserole

With everything neatly in place, it's time to bake the casserole for that melty, golden-brown finish.

Step 1: Preheat the Oven

Preheat your oven to 375°F.

Step 2: Place in the Oven

Place the casserole on the middle rack of the oven and bake for 25-30 minutes until the topping is golden brown and the casserole is bubbly around the edges.

Serving and Customization

The casserole is best served hot, straight from the oven. You can present it family-style or portion it out onto plates. Here are a few serving suggestions and customization ideas:

  • Garnish with fresh herbs like thyme or parsley.
  • Add a squeeze of lemon juice over the casserole for a bright and zesty finish.
  • For a toned-down dish, omit the cream sauce and just sprinkle the Brussels sprouts with cheese and the crumb topping before baking.

Storage and Reheating

Brussel sprout casserole can be stored in an airtight container in the refrigerator for up to 3 days. To reheat, place in a 350°F oven for 15-20 minutes, or until heated through. You can also reheat single portions in the microwave for 2-3 minutes, checking and stirring often.

By following this simple but comprehensive guide, you are guaranteed to create a delicious brussel sprout casserole that is both nutritious and indulgent. Whether it’s a special occasion or simply a weeknight dinner, this dish is sure to become a staple in your cooking repertoire.

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