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Cauliflower Alfredo Pasta Recipe

4.4 from 124 reviews

A creamy, dairy-rich Fettuccine Alfredo made with a smooth cauliflower-based sauce, Parmesan cheese, and a hint of lemon, tossed with perfectly cooked fettuccine pasta. This recipe blends the richness of traditional Alfredo with the added nutrition of cauliflower for a delightful twist on a classic Italian dish.

Ingredients

Scale

Vegetables & Aromatics

  • 12 ounces cauliflower florets (about 1 small cauliflower)
  • 2 garlic cloves
  • Chopped fresh parsley for garnish

Dairy & Fats

  • ½ cup grated Parmesan cheese (plus more for serving)
  • 3 tablespoons unsalted butter
  • ¼ cup extra-virgin olive oil

Pantry Items & Seasoning

  • ½ teaspoon Dijon mustard
  • 2 tablespoons fresh lemon juice
  • 1 teaspoon sea salt
  • Freshly ground black pepper, to taste

Pasta

  • 16 ounces fettuccine pasta
  • 1 to cups reserved pasta cooking water

Instructions

  1. Prepare cauliflower: Bring a large pot of salted water to a boil. Add the cauliflower florets and boil for 8 to 10 minutes, or until fork-tender. Drain well.
  2. Make the sauce: Place the drained cauliflower in a blender. Add Parmesan cheese, olive oil, garlic, Dijon mustard, unsalted butter, fresh lemon juice, sea salt, and several grinds of black pepper.
  3. Cook the pasta: In the same or a separate large pot, bring salted water to a boil and cook the fettuccine according to package instructions until al dente. Drain the pasta, reserving 1½ cups of the starchy cooking water.
  4. Blend the sauce: Pour 1 cup of the reserved pasta water into the blender with the cauliflower mixture and blend until the sauce is smooth and creamy in texture.
  5. Toss pasta with sauce: Transfer the cooked fettuccine to a large bowl or skillet. Add the blended cauliflower sauce and toss to coat completely. If the sauce is too thick, add the remaining ½ cup of reserved pasta water gradually and toss again to achieve a creamier consistency.
  6. Garnish and serve: Sprinkle chopped fresh parsley over the pasta, taste and adjust seasoning if needed. Serve immediately with additional grated Parmesan cheese on the side.

Notes

  • Reserve pasta cooking water to adjust sauce consistency for a perfect creamy texture.
  • Boiling cauliflower softens it for smooth blending and a creamy texture without heavy cream.
  • Adding lemon juice adds brightness and balances the richness of the sauce.
  • This dish is best served fresh for optimal creaminess and flavor.
  • For a gluten-free version, substitute fettuccine with gluten-free pasta.

Keywords: Fettuccine Alfredo, cauliflower Alfredo, creamy pasta, Italian pasta recipe, vegetarian Alfredo, healthy Alfredo sauce