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The Best Brussels Sprouts Casserole

The Best Brussels Sprouts Casserole

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  • Author: Veronica
  • Prep Time: 10
  • Cook Time: 30
  • Total Time: 40
  • Yield: 4 servings 1x
  • Category: dinner
  • Method: Roasting and Baking
  • Cuisine: American
  • Diet: Vegetarian

Description

Transform humble Brussels sprouts into the star of your table with this comforting, oven-baked casserole. Featuring perfectly roasted, caramelized sprouts enveloped in a silky, garlic-infused white sauce and topped with a satisfyingly crunchy layer of fried onions, this dish offers the perfect balance of earthy, creamy, and crispy textures. It is an elegant, budget-friendly side dish that is nourishing, simple to prepare, and guaranteed to win over even the most skeptical sprout lovers at your next family meal.


Ingredients

Scale

4 cups fresh Brussels sprouts, trimmed and halved
1 tablespoon olive oil
Salt and pepper to taste
1 tablespoon unsalted butter
1/4 cup onion, finely chopped
1/4 teaspoon garlic powder
2 tablespoons all-purpose flour
1 cup milk
Fresh parsley for garnish
1/2 cup crispy fried onions


Instructions

Preheat your oven to 400°F (200°C).
Toss the halved Brussels sprouts with olive oil, salt, and pepper on a baking sheet and roast for 15-20 minutes until tender and caramelized.
While sprouts roast, melt butter in a saucepan over medium heat and sauté the onions until soft.
Whisk in the flour and garlic powder to create a roux, cooking for 1 minute.
Gradually whisk in the milk until the sauce thickens into a silky consistency.
Place the roasted sprouts into a small baking dish and pour the creamy sauce over them.
Top with the crispy fried onions and bake for an additional 5-10 minutes until bubbling.
Garnish with fresh parsley before serving.


Notes

Ensure you roast the sprouts until they are golden brown to provide a deep, nutty flavor. You can make this recipe gluten-free by substituting the flour with a gluten-free all-purpose blend. Store leftovers in an airtight container for up to 3 days, though the topping is best when freshly added.


Nutrition

  • Serving Size: 1 cup
  • Calories: 165
  • Sugar: 4g
  • Sodium: 280mg
  • Fat: 9g
  • Saturated Fat: 3g
  • Carbohydrates: 18g
  • Fiber: 5g
  • Protein: 6g
  • Cholesterol: 15mg