Go Back

Loaded Cheesy Brussels Sprouts – Christmas Side Dish

Print Recipe Pin Recipe
Prep Time 15 minutes
Cook Time 25 minutes
Total Time 40 minutes
Servings: 6 servings
Ingredients Method

Ingredients
  

  • 2 pounds Brussels sprouts, trimmed and halved
  • 6 slices thick-cut bacon, diced
  • 2 tablespoons olive oil
  • 1 teaspoon kosher salt, plus more to taste
  • 1/2 teaspoon black pepper
  • 1/4 teaspoon crushed red pepper flakes (optional)
  • 3 tablespoons unsalted butter
  • 3 tablespoons all-purpose flour
  • 1 3/4 cups whole milk (or half-and-half for richer sauce)
  • 1 teaspoon Dijon mustard
  • 2 cloves garlic, minced
  • 1 1/2 cups shredded sharp cheddar cheese, divided
  • 1/2 cup grated Parmesan cheese, divided
  • 2 green onions, thinly sliced (optional, for garnish)
  • 2 tablespoons chopped fresh parsley (optional)

Method
 

  1. Preheat the oven to 425°F (220°C). Line a large baking sheet with parchment paper for easy cleanup.
  2. Toss the Brussels sprouts with olive oil, 1 teaspoon salt, black pepper, and red pepper flakes (if using). Spread cut side down on the tray for max caramelization.
  3. Roast for 18–22 minutes, until the edges are browned and the centers are just tender. Set aside. Reduce the oven temperature to 375°F (190°C).
  4. While the sprouts roast, cook the bacon in a skillet over medium heat until crisp, 7–9 minutes. Transfer bacon to a paper towel–lined plate. Drain all but 1 tablespoon bacon fat from the skillet.
  5. Add butter to the skillet and melt over medium heat. Stir in the flour and cook, whisking, for 1 minute to form a roux.
  6. Slowly whisk in the milk, a little at a time, until smooth. Simmer 2–3 minutes, stirring, until slightly thickened and silky.
  7. Whisk in Dijon and garlic. Turn off the heat. Stir in 1 cup cheddar and 1/4 cup Parmesan until melted. Season the sauce to taste with salt and pepper.
  8. Combine the roasted sprouts, most of the bacon (save a little for topping), and the cheese sauce in a lightly greased 9x13-inch baking dish. Stir to coat evenly.
  9. Top with the remaining 1/2 cup cheddar and 1/4 cup Parmesan. Sprinkle over the reserved bacon.
  10. Bake at 375°F (190°C) for 12–15 minutes, until bubbling around the edges. For extra color, broil for 1–2 minutes, watching closely.
  11. Let rest for 5 minutes. Garnish with green onions and parsley if you like. Serve warm.