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A fork lifts a bite of Brussel Sprouts Au Gratin from a bowl
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4 from 1 vote

Brussel Sprouts Au Gratin

Brussel Sprouts Au Gratin takes the classic most hated veggie of all time and drowns it in a delicious cheese sauce making it a yummy side dish that is hard to hate!
Prep Time10 mins
Cook Time1 hr
Total Time1 hr 10 mins
Course: Side
Cuisine: American
Keyword: Brussel Sprouts Au Gratin
Servings: 6 Servings
Calories: 210kcal


  • 2 tablespoons butter
  • 2 tablespoons flour
  • 1/2 teaspoon ground mustard
  • 1/2 teaspoon onion powder
  • 1/2 teaspoon salt
  • 1 1/2 cups milk
  • 3 tablespoons cream cheese
  • 1/2 cup shredded parmesan cheese
  • 1 to 1 1/2 lbs fresh brussel sprouts trimmed


  • Preheat oven to 350 degrees. Lightly grease a 2-quart (8x8) casserole dish with nonstick cooking spray.
  • In a medium-size saucepan, melt butter over medium heat. Whisk in flour to form a roux. Whisk in mustard, onion powder, and salt.
  • When the paste is warm and bubbly, pour in milk. Heat until mixture thickens.
  • Remove from heat and stir in cream cheese and parmesan cheese until melted and smooth.
  • Place the trimmed brussel sprouts in the prepared pan (Note: if your brussel sprouts are large you may need to cut them in half so they are bite-sized). Pour cheese mixture over brussel sprouts.
  • Bake in the preheated oven for 45 minutes to 1 hour, until brussel sprouts are soft.



Calories: 210kcal | Carbohydrates: 19g | Protein: 13g | Fat: 9g | Saturated Fat: 5g | Cholesterol: 28mg | Sodium: 522mg | Potassium: 502mg | Fiber: 2g | Sugar: 5g | Vitamin A: 915IU | Vitamin C: 64.3mg | Calcium: 266mg | Iron: 2.2mg