Brussels Sprouts Gratin

Delicious roasted brussels sprouts with a light cheese sauce.

These brussels sprouts are roasted until crisp, then topped with a light cheese sauce made with Gruyere and parmesan, then baked until brown and bubbling. If you are as obsessed with brussels sprouts as I am, you’ll love these. Perfect to add to your holiday table!

Brussels Sprouts Gratin
Servings: 6 • Size: 1/2 cup • Points +: 3 pts • Smart Points: 3
Calories: 110 • Fat: 5 g • Carb: 12 g • Fiber: 3 g • Protein: 7 g • Sugar: 3 g
Sodium: 127 mg (with salt) • Cholesterol: 14 mg


  • 16 oz brussels sprouts, trimmed of outer leaves and sliced in half
  • 1/4 tsp kosher salt
  • black pepper, to taste
  • olive oil spray
  • 1/2 tbsp butter
  • 1/3 cup chopped shallots
  • 2 tsp all purpose flour (or gluten free flour for GF)
  • 3/4 cup fat free milk
  • 1/4 tsp kosher salt
  • 1 tsp fresh thyme
  • 1 tbsp grated parmesan cheese
  • 2 oz grated Gruyere cheese, divided


Preheat oven to 400°F. Spray an 8″x12″ gratin dish or casserole with olive oil. Add the brussels sprouts and season with salt and pepper. Spray more olive oil over the brussels and place in the lower third of the oven. Bake 15 minutes, toss and bake an additional 10 minutes.

Heat a medium nonstick pan over medium heat. Add butter and let it melt, add the shallots and cook until softened, about 4 to 5 minutes.  Sprinkle the flour over the shallots to make a roux, whisking for 1 to 2 minutes. Add the milk and stir with a wooden spoon until the roux is incorporated into the milk. Cook over medium-low heat for about 4 minutes, stirring, until the sauce thickens. Add fresh thyme, parmesan and half of the grated Gruyere cheese into the white sauce and stir until the cheese is melted and incorporated into the sauce.

Pour over the brussels sprouts, and top with the remaining cheese. Bake for 15 minutes until top is lightly browned and bubbly.