Creamy Cauliflower Pasta Sauce
Sometimes the best comfort food is also the sneakiest. Take this Cauliflower Pasta Sauce—it’s creamy, garlicky, and rich enough to feel indulgent, but the star of the show is actually a humble cauliflower. Add a little roasted garlic, creamy cashews, and a sprinkle of nutritional yeast, and you’ve got a velvety sauce that clings to pasta like a dream.
This is one of those dishes that’ll have everyone at the table asking, “Wait, what’s in this?!” It looks and tastes like Alfredo’s healthier cousin, but it’s dairy-free, nutrient-packed, and loaded with flavor. Trust me, this one’s a keeper.
Recipe Origin
Plant-based creamy sauces have been gaining traction in kitchens everywhere. This one is inspired by the classic Alfredo pasta, but instead of butter and cream, we lean on cauliflower, cashews, and almond milk to achieve that luscious texture. Think of it as a lighter, modern twist on an old favorite—comforting, nourishing, and just as satisfying.
Kitchen Tools You’ll Need
- Large pot for boiling cauliflower and pasta
- Colander for draining
- Baking tray for roasting garlic and cauliflower (optional)
- High-speed blender or food processor
- Measuring cups and spoons
- Wooden spoon or spatula
- Large skillet for finishing the sauce with pasta

Creamy Cauliflower Pasta SauceCreamy Cauliflower Pasta SauceCreamy Cauliflower Pasta Sauce
- Total Time: 40 minutes
- Yield: 4 servings
Description
This creamy Cauliflower Pasta Sauce is a dairy-free, vegan-friendly alternative to Alfredo sauce. Made with roasted cauliflower, garlic, cashews, and a touch of lemon, it’s velvety smooth, full of flavor, and perfect for coating fettuccine or your favorite pasta.
Ingredients
- 1/2 large head of cauliflower, washed and chopped
- 6 cloves garlic, peeled
- 3 tablespoons olive oil, divided
- 1 teaspoon salt (plus more to taste)
- 1 teaspoon vegetable stock powder or Vegeta seasoning
- 1/2 cup raw cashews
- 1 1/2 cups almond milk (or your favorite milk substitute)
- 1/2 cup nutritional yeast
- Juice of 1/2 lemon
- 300 g fettuccine, cooked al dente
- Salt, pepper, and a pinch of nutmeg, to taste
- Fresh parsley, chopped (for garnish)
Instructions
- Preheat oven to 400°F (200°C). Spread cauliflower and garlic on a baking sheet. Drizzle with 2 tablespoons olive oil, season with salt, and roast for 20–25 minutes until golden and tender.
- Meanwhile, soak the cashews in hot water for 15 minutes, then drain.
- In a blender, combine roasted cauliflower, garlic, cashews, almond milk, nutritional yeast, lemon juice, vegetable stock powder, and remaining olive oil. Blend until smooth and creamy.
- Taste and season with salt, pepper, and a pinch of nutmeg as desired.
- Toss cooked fettuccine with the sauce until well coated.
- Serve immediately, topped with fresh parsley.
Notes
- For extra creaminess, add 1–2 tablespoons of tahini to the sauce.
- If you prefer a thinner sauce, add more almond milk until desired consistency is reached.
- This sauce also works well as a base for casseroles or as a creamy topping for roasted veggies.
- Prep Time: 15 minutes
- Cook Time: 25 minutes
- Category: Main Dish
- Method: Roasting, Blending
- Cuisine: Vegan, Dairy-Free
Nutrition
- Serving Size: 1 serving
- Calories: 320
- Sugar: 4g
- Sodium: 520mg
- Fat: 14g
- Saturated Fat: 2g
- Unsaturated Fat: 11g
- Trans Fat: 0g
- Carbohydrates: 40g
- Fiber: 6g
- Protein: 12g
- Cholesterol: 0mg
Why You’ll Love Creamy Cauliflower Pasta Sauce
Healthy Comfort Food
It’s the best of both worlds—comfort food you can feel good about. Creamy, dreamy pasta that also sneaks in a load of veggies.
Dairy-Free and Vegan Friendly
Perfect for anyone avoiding dairy but craving that indulgent cream-sauce vibe. Cashews and almond milk give it body without needing cream.
Versatile
Pair it with fettuccine, spaghetti, penne—whatever pasta you’ve got on hand. You can even use it as a sauce for casseroles or veggie bakes.
Simple Ingredients, Big Flavor
A handful of pantry staples transform into something luxurious. Cauliflower, garlic, and lemon juice create depth, while nutritional yeast adds that cheesy note.
Family-Friendly
Kids won’t even realize they’re eating cauliflower—it’s that smooth and delicious.
Chef’s Pro Tips for Perfect Results
- Soak the cashews: If you don’t have a high-speed blender, soak them in hot water for 30 minutes first for a smoother sauce.
- Roast the garlic: For extra flavor, roast the garlic cloves with a drizzle of olive oil before blending.
- Adjust thickness: If the sauce feels too thick, add a splash more almond milk until it’s silky.
- Finish in the pan: Toss the sauce and pasta together in a skillet for a few minutes so the flavors really marry.
- Nutmeg is magic: Just a pinch brings warmth and depth—don’t skip it.
Ingredients in Cauliflower Pasta Sauce
Here’s how everything comes together into that creamy, dreamy sauce:
Cauliflower
The heart of the sauce. Once cooked and blended, it becomes the perfect base for a silky, veggie-powered cream sauce.
Garlic
Adds irresistible flavor and aroma—especially if roasted until golden and sweet.
Olive Oil
Brings richness and helps with that velvety finish.
Salt and Vegetable Stock Powder
Enhance the natural flavors and give the sauce depth.
Cashews
The secret to that luscious, creamy texture without dairy.
Almond Milk
Lightens the sauce while keeping it creamy and smooth.
Nutritional Yeast
Adds a cheesy, savory note that makes the sauce feel indulgent.
Lemon Juice
Brightens everything up with just the right touch of acidity.
Pasta
Fettuccine (or your favorite) is the perfect partner for this rich sauce.
Seasonings
Salt, pepper, and a pinch of nutmeg tie the flavors together beautifully.
Fresh Parsley
For garnish, freshness, and a pop of color.
(Note: the full ingredients list, including measurements, is provided in the recipe card directly below.)
Instructions
Let’s create this bowl of cozy pasta goodness:
Cook the Cauliflower
Bring a pot of salted water to a boil. Add cauliflower and cook until tender, about 10 minutes. Drain and set aside.
Prepare the Cashews
If you haven’t soaked them already, cover cashews in hot water for 30 minutes to soften. Drain before blending.
Roast the Garlic (Optional)
Toss garlic cloves with a drizzle of olive oil and roast at 375°F (190°C) for 20 minutes until golden and fragrant.
Blend the Sauce
In a blender, combine cooked cauliflower, cashews, almond milk, nutritional yeast, lemon juice, garlic, vegetable stock powder, salt, and olive oil. Blend until silky smooth. Adjust seasoning with pepper and a pinch of nutmeg.
Cook the Pasta
Meanwhile, cook fettuccine until al dente. Reserve ½ cup of pasta water before draining.
Combine Pasta and Sauce
In a large skillet, toss pasta with the sauce, adding reserved pasta water as needed to loosen. Simmer 2–3 minutes to let flavors meld.
Garnish and Serve
Top with fresh parsley and an extra sprinkle of nutritional yeast. Serve hot and enjoy!

How to Serve Creamy Cauliflower Pasta Sauce
- As a Main Dish: Toss with fettuccine or spaghetti and serve with a side salad.
- With Garlic Bread: Perfect for soaking up any leftover sauce.
- With Roasted Veggies: Add roasted broccoli, mushrooms, or zucchini for extra bulk.
- Baked Pasta: Layer with pasta and bake with breadcrumbs on top for a comforting casserole.
Make-Ahead and Storage Tips
- Make Ahead: Sauce can be made 2–3 days in advance and stored in the fridge.
- Storage: Store leftovers in an airtight container for up to 3 days.
- Freezer Friendly: Freeze sauce (without pasta) for up to 1 month. Thaw and blend again if it separates slightly.
- Reheat: Warm gently on the stove, adding a splash of milk or water to loosen.
Variations to Try
- Spicy Kick: Add red pepper flakes or a pinch of cayenne for heat.
- Herby Twist: Blend in fresh basil or thyme for a different flavor profile.
- Extra Cheesy: Stir in vegan mozzarella or Parmesan for extra richness.
- Protein Boost: Add sautéed chickpeas or grilled chicken on top.
Additional Tips
- Use freshly squeezed lemon juice for the brightest flavor.
- Don’t skip the nutritional yeast—it really makes the sauce taste cheesy.
- Blend in batches if your blender is small; you want it completely smooth.
- Save pasta water—it’s liquid gold for adjusting sauce consistency.
FAQ Section
Q1: Can I use frozen cauliflower?
A1: Yes! Just steam or boil until tender and proceed as normal.
Q2: Can I substitute cashews with another nut?
A2: Almonds or sunflower seeds can work, though cashews make the creamiest sauce.
Q3: Is this recipe gluten-free?
A3: Use gluten-free pasta, and the sauce itself is naturally gluten-free.
Q4: Can I use dairy milk instead of almond milk?
A4: Definitely—it will make the sauce even richer.
Q5: Can I skip the nutritional yeast?
A5: Yes, but you’ll lose some of the “cheesy” flavor. Add Parmesan (if not vegan) instead.
Q6: How do I make this nut-free?
A6: Substitute cashews with silken tofu or extra cauliflower for creaminess.
Q7: Can I add vegetables to the sauce?
A7: Absolutely—roasted carrots or squash add extra sweetness and depth.
Q8: Can I make this in advance for meal prep?
A8: Yes! Divide into portions with pasta for easy reheatable lunches.
Q9: Does the sauce taste like cauliflower?
A9: Not strongly—it’s mild, creamy, and flavored by garlic, lemon, and seasoning.
Q10: Can I bake this sauce into a pasta dish?
A10: Yes, toss with pasta, top with breadcrumbs, and bake until bubbly.
Conclusion
This Creamy Cauliflower Pasta Sauce proves that comfort food doesn’t have to be heavy. With roasted garlic, cashews, and a hint of nutmeg, it’s rich, satisfying, and full of flavor—while sneaking in some serious veggie power.
Whether you’re vegan, dairy-free, or just looking for a lighter twist on Alfredo, this recipe is a total win. Whip it up for weeknight dinners, meal prep lunches, or a cozy weekend treat. One bite, and you’ll see why cauliflower is the true undercover star of the pasta world!