Roasted Cauliflower Pasta Recipe

Make a creamy pasta sauce out of good-for-you cauliflower florets!

On a diet, but can’t give up carbs? This veggie pasta dish is right up your alley. Cauliflower saves the day!

Roasted Cauliflower Pasta Recipe

JR Trani
Make a creamy pasta sauce out of good-for-you cauliflower florets!
Prep Time 30 minutes
Cook Time 1 hour 30 minutes
Total Time 2 hours
Cuisine Others
Servings 3


Roasted Cauliflower Pasta Ingredients

  • non-stick cooking spray for roasting
  • 1 600-gram head cauliflower
  • Salt to taste
  • 2 tablespoons olive oil
  • 2 large white onion sliced thinly into half-moons
  • 1 Cup non-fat milk
  • 250 Grams whole-wheat spaghetti Cooked according to package directions, pasta water reserved
  • 2 tablespoons capers drained
  • 2 tablespoons flat-leaf parsley chopped, plus extra for garnish
  • lemon juice to serve


  • Preheat oven to 390°F. Grease a baking pan with cooking spray or brush lightly with vegetable oil.
  • Spray cauliflower with nonstick cooking spray or toss lightly in vegetable oil. Season with salt. Roast cauliflower until tender and slightly browned on the exterior, about 1 hour to 1 hour 30 minutes. Cut into florets and reserve stems. Set florets aside.  
  • Peel cauliflower stems to remove woody exterior. Cut tender parts of stems into cubes. Set aside.
  • Heat olive oil in a saucepan over low heat. Add onions and season with salt. Cook until dried and onions are very soft, about 20 minutes. Add cubed cauliflower stems. Sauté for 1 minute. Add milk and bring to a boil. Lower heat and simmer for 2 to 3 minutes.
  • Transfer mixture to a blender and process until smooth. Season with salt and pepper.
  • Return sauce to pan and simmer. Add 1 to 2 tablespoons pasta cooking water and stir. Season with salt and pepper.
  • Add cooked spaghetti and toss to combine. Cook for 1 more minute.
  • Add cauliflower florets, capers, and parsley. Drizzle with lemon juice. Garnish with more parsley. Serve immediately. 
Keyword cauliflower pasta, cauliflower pasta sauce, cauliflower recipe, cauliflower, roasted cauliflower
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