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A wooden spoon scooping cauliflower mac and cheese from a skillet.
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Roasted Cauliflower Mac and Cheese

Roasted Cauliflower Mac and Cheese is creamy, satisfying, and so crave-worthy! This low carb mac and cheese is a delicious substitute for pasta.
Prep Time10 minutes
Cook Time35 minutes
Total Time45 minutes
Course: Main Course, Side Dish
Cuisine: American
Diet: Gluten Free, Low Calorie
Keyword: roasted cauliflower mac and cheese
Servings: 6
Calories: 296kcal
Author: Valerie Brunmeier

Ingredients

Instructions

Roast the Cauliflower

  • Preheat the oven to 425 degrees F.
  • Place the cauliflower on a large rimmed baking sheet (baking sheet will be very full). Drizzle with 1 tablespoon olive oil and season with ½ teaspoon salt, and ¼ teaspoon pepper. Toss it with your hands to coat it well with the oil then spread out evenly over the baking sheet.
  • Roast for 20 to 25 minutes, or until just beginning to brown and barely fork tender, stirring with a spatula a couple of times throughout the cooking time. Remove from the oven and set aside.
  • Reduce oven temperature to 400 degrees F.

Make the Cheese Sauce

  • Melt the butter with the remaining 1 tablespoon oil in a 12-inch oven-proof saute pan over MEDIUM heat (alternately, you can make the sauce in a large saucepan and transfer to a baking dish). Add the garlic and cook for 1 to 2 minutes, or until fragrant.
  • Whisk in the flour. Reduce the heat to LOW and cook, whisking, for 2 to 3 minutes until lightly golden.
  • Add the milk and continue whisking, increase the heat as needed to bring it to a low boil stirring constantly, until thickened, about 2 minutes. Season with onion powder, dry mustard, remaining ¼ teaspoon salt and remaining ¼ teaspoon black pepper. Add the cheese and remove the pan from the heat, stirring until the cheese is melted and the sauce is smooth.

Assemble and Bake

  • Stir in the roasted cauliflower (if using a saucepan, transfer the mixture to a baking dish). Transfer to the oven and bake at 400 degrees F until bubbly and golden, about 15 minutes. BROIL 2 minutes, or until the top is slightly browned.

Nutrition

Calories: 296kcal | Carbohydrates: 14g | Protein: 14g | Fat: 21g | Saturated Fat: 10g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 7g | Trans Fat: 0.1g | Cholesterol: 49mg | Sodium: 624mg | Potassium: 500mg | Fiber: 3g | Sugar: 6g | Vitamin A: 517IU | Vitamin C: 57mg | Calcium: 390mg | Iron: 1mg