Creamy Cauliflower Alfredo Pasta

Featured in: Everyday Main Dishes

This wholesome Alfredo transforms humble cauliflower into an incredibly smooth, velvety sauce that rivals traditional cream-based versions. The cauliflower naturally thickens while cooking with aromatic garlic and onion, creating a luxurious texture without heavy cream. Perfect for weeknight dinners, this lighter take on the Italian classic delivers all the rich, cheesy comfort you crave with significantly less fat. The sauce comes together quickly in the blender, then coats hot fettuccine for an instantly satisfying meal that works beautifully for vegetarian diets and easily adapts to vegan needs.

Updated on Sun, 25 Jan 2026 12:45:40 GMT
Velvety Easy Creamy Cauliflower Alfredo tossed with fettuccine, ready for serving. Save to Pinterest
Velvety Easy Creamy Cauliflower Alfredo tossed with fettuccine, ready for serving. | nexusfork.com

Discover a lighter way to enjoy the classic comfort of pasta with this Easy Creamy Cauliflower Alfredo. By blending cooked cauliflower into a velvety sauce, you can skip the heavy cream while maintaining a rich, satisfying texture. This dish is a perfect example of how simple, wholesome ingredients can be transformed into a guilt-free masterpiece that the whole family will love.

Velvety Easy Creamy Cauliflower Alfredo tossed with fettuccine, ready for serving. Save to Pinterest
Velvety Easy Creamy Cauliflower Alfredo tossed with fettuccine, ready for serving. | nexusfork.com

The secret to this recipe lies in the boiling process, where the garlic and onion cook right alongside the cauliflower to infuse the base with deep flavor. Once blended with a touch of butter and Parmesan, the result is a sauce so luxurious you won't believe it's made primarily from vegetables.

Ingredients

  • Vegetables: 1 medium head cauliflower, cut into florets (about 700 g); 3 cloves garlic, peeled; 1 small yellow onion, chopped
  • Dairy & Alternatives: 2 tablespoons unsalted butter; 1/3 cup grated Parmesan cheese (plus extra for serving; use vegetarian Parmesan if needed); 1/2 cup milk (dairy or unsweetened plant-based)
  • Pasta: 350 g fettuccine or linguine
  • Seasonings: 1 teaspoon salt, plus more to taste; 1/2 teaspoon freshly ground black pepper; Pinch of ground nutmeg (optional)
  • Garnishes: Fresh parsley, chopped (optional); Extra Parmesan (optional)
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Instructions

Step 1
Bring a large pot of salted water to a boil. Add cauliflower florets, garlic, and chopped onion. Cook for 8–10 minutes until cauliflower is very tender.
Step 2
Using a slotted spoon, transfer the cooked vegetables to a blender.
Step 3
Add butter, Parmesan cheese, milk, salt, pepper, and nutmeg (if using) to the blender. Blend until completely smooth and creamy. Add a splash of cooking water if needed to reach desired consistency.
Step 4
In the same pot, cook pasta according to package instructions until al dente. Reserve 1 cup of pasta water, then drain.
Step 5
Return drained pasta to the pot. Pour over the cauliflower Alfredo sauce and toss well to coat, adding reserved pasta water as needed for creaminess.
Step 6
Taste and adjust seasoning. Serve hot, garnished with fresh parsley and extra Parmesan if desired.

Zusatztipps für die Zubereitung

For the smoothest sauce, ensure the cauliflower is very soft before blending. If you prefer an even lighter version, you can reduce the butter or use a high-powered blender to achieve creaminess with even less liquid. Always reserve that pasta water; its starch helps the sauce bind perfectly to the noodles.

Varianten und Anpassungen

This recipe is highly adaptable. For a vegan version, simply use plant-based milk, vegan butter, and nutritional yeast instead of Parmesan. You can also boost the nutritional profile by adding sautéed mushrooms or steamed broccoli. If you have dietary restrictions, whole wheat or gluten-free pasta works just as well.

Serviervorschläge

Serve this pasta piping hot in warmed bowls. A final sprinkle of fresh parsley adds a pop of color and freshness, while an extra dusting of Parmesan cheese enhances the savory notes. Pair it with a simple side salad or some crusty bread to soak up every last bit of the cauliflower sauce.

Close-up of delicious Easy Creamy Cauliflower Alfredo pasta bathed in rich sauce. Save to Pinterest
Close-up of delicious Easy Creamy Cauliflower Alfredo pasta bathed in rich sauce. | nexusfork.com

Whether you are looking for a healthy weeknight dinner or a clever way to eat more vegetables, this Easy Creamy Cauliflower Alfredo is sure to become a favorite. It proves that you don't need heavy cream to enjoy a decadent, velvety pasta dish.

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Questions & Answers

What makes cauliflower Alfredo lighter than traditional versions?

Cauliflower creates a naturally thick and creamy sauce base without using any heavy cream. The vegetable's starch content provides that velvety texture typically achieved through full-fat dairy, significantly reducing calories while maintaining richness. Blending the cooked cauliflower with modest amounts of milk and Parmesan yields the same smooth consistency as traditional Alfredo with a fraction of the fat.

Can I make this Alfredo sauce vegan?

Absolutely. Replace the butter with plant-based butter or olive oil, swap dairy milk for unsweetened almond or soy milk, and use nutritional yeast instead of Parmesan cheese. The cauliflower base provides excellent texture, and nutritional yeast delivers that signature umami, cheesy flavor that makes Alfredo so satisfying.

How do I achieve the smoothest sauce consistency?

Ensure the cauliflower is completely tender—overcooking slightly actually helps achieve silkiness. Blend on high speed for at least 1-2 minutes, stopping to scrape down sides as needed. If your blender struggles, add a splash of pasta cooking water or additional milk to help everything circulate smoothly. The sauce should flow easily when poured.

What pasta shapes work best with this sauce?

Fettuccine and linguine are classic choices because their flat surfaces hold the creamy sauce beautifully. However, penne, rigatoni, or gemelli also work wonderfully—their ridges and nooks capture the velvety sauce in every bite. Even shorter shapes like macaroni make for a comforting bowl. Whole wheat or chickpea pasta adds extra fiber and protein.

Can I add protein or extra vegetables?

This Alfredo pairs perfectly with grilled chicken, sautéed shrimp, or white beans for vegetarians. Sautéed mushrooms, steamed broccoli florets, or fresh spinach fold beautifully into the sauce. For extra texture, top with toasted pine nuts or crispy pancetta. The mild cauliflower base allows other flavors to shine without competing.

How long does leftover Alfredo keep?

Store sauce separately from pasta for best results. The cauliflower Alfredo keeps refrigerated for 3-4 days in an airtight container. When reheating, add a splash of milk or pasta water to restore creaminess—the sauce may thicken when chilled. Pasta tossed with sauce absorbs moisture quickly, so leftover combined dishes are best eaten within 2 days.

Creamy Cauliflower Alfredo Pasta

Light and velvety cauliflower-based Alfredo sauce coats tender pasta for guilt-free comfort food.

Prep duration
15 minutes
Cook duration
25 minutes
Overall time
40 minutes
Recipe by Nexus Fork Wyatt Evans


Skill level Easy

Cuisine type Italian-inspired

Portions 4 Number of servings

Diet preferences Vegetarian-friendly

Ingredient list

Vegetables

01 1 medium head cauliflower, cut into florets (approximately 24.7 ounces)
02 3 cloves garlic, peeled
03 1 small yellow onion, chopped

Dairy & Alternatives

01 2 tablespoons unsalted butter
02 1/3 cup grated Parmesan cheese, plus extra for serving
03 1/2 cup milk (dairy or unsweetened plant-based)

Pasta

01 12.3 ounces fettuccine or linguine

Seasonings

01 1 teaspoon salt, plus additional to taste
02 1/2 teaspoon freshly ground black pepper
03 Pinch of ground nutmeg, optional

Garnishes

01 Fresh parsley, chopped (optional)
02 Extra Parmesan cheese (optional)

Step-by-step guide

Step 01

Prepare the vegetable base: Bring a large pot of salted water to a boil. Add cauliflower florets, garlic cloves, and chopped onion. Cook for 8 to 10 minutes until cauliflower is very tender and easily pierced with a fork.

Step 02

Blend the sauce: Using a slotted spoon, transfer the cooked vegetables to a blender. Add butter, Parmesan cheese, milk, salt, pepper, and nutmeg if using. Blend until completely smooth and creamy. Add a splash of reserved cooking water if needed to reach desired consistency.

Step 03

Cook the pasta: In the same pot, cook pasta according to package instructions until al dente. Reserve 1 cup of pasta water, then drain through a colander.

Step 04

Combine and finish: Return drained pasta to the pot. Pour over the cauliflower Alfredo sauce and toss well to coat. Add reserved pasta water gradually as needed to achieve desired creaminess.

Step 05

Season and serve: Taste and adjust seasoning with salt and pepper as needed. Serve immediately while hot, garnished with fresh parsley and additional Parmesan cheese if desired.

Equipment you'll need

  • Large pot
  • Slotted spoon
  • Blender or food processor
  • Colander
  • Wooden spoon

Allergy notes

Look at every ingredient for allergens and get help from a medical expert if unsure.
  • Contains dairy and wheat from pasta
  • For gluten-free preparation, use certified gluten-free pasta
  • For dairy-free preparation, use plant-based milk and butter alternatives
  • Always verify product labels for potential allergen cross-contamination

Nutrition details (per serving)

For informational purposes only. Always check with your healthcare provider.
  • Calorie count: 350
  • Total fat: 9 g
  • Carbohydrates: 55 g
  • Proteins: 13 g