Pressure Cooker Cauliflower Fettuccine Alfredo

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Cauliflower Fettuccine Alfredo is a healthy pasta recipe for a pressure cooker. This Instant Pot / Pressure Cooker Cauliflower Fettuccine Alfredo recipe is magical in a veggie loaded, flavor bomb, healthy calories, sort of a way. Go ahead and pull out that Insta Pot and let’s get cooking!

Pressure Cooker (Instant Pot) Cauliflower Fettuccine Alfredo

Hey everybody!  This is Marci from TIDBITS.  As always, I’m excited to be posting here and thank you Barbara for the opportunity!

Happy New Year!  I am so excited for today’s recipe because I’m pretty sure I’m helping you with 2 of your new year goals.

1)  Eat Healthier, and

2) Become the Boss of your Brand New Electric Pressure Cooker that you got for Christmas.

Note from Barbara: If you are new to pressure cooking, be sure to check out my pressure cooker user’s resource guide for everything you need to know about pressure cooking!

looking down onto a plate of Cauliflower Fettuccine Alfredo

I used to go to Olive Garden often to order their Steak Gorgonzola Alfredo pasta dish.  I didn’t even need to look at a menu, that’s just what I got, every. single. time.

It never left me disappointed and I would eat the WHOLE plate.  All 1300 calories and 70 grams of fat, oh yes I did.  Then of course I’d go home in a food coma and swear to share half of it next time (nope, not gonna happen).

Pressure Cooker Cauliflower Fettuccine Alfredo twirled onto a dinner fork

Making Cauliflower Fettuccine Alfredo in an Instant Pot

An Instant Pot is one of the most popular brands of electric pressure cookers. They are easy to use and your Instant Pot can help you create this delicious Cauliflower Fettuccine Alfredo recipe!

I haven’t been back to Olive Garden in years because of this very recipe that I’m sharing today.  This Alfredo sauce is made with a touch of butter and a whole ton of cauliflower.  No cream, no cheese, yet still it tastes oh-so-creamy and cheesy.

Then, since I get giddy over adding even more veggies to my veggie sauce, I’ve also added chopped spinach and green onions.  I’ve also topped it with leftover grilled chicken, sausage, or bacon before, all completely amazing.

Cauliflower Fettuccine Alfredo on a white dinner plate with a fork sitting on the edge of the plate

Then to mimic the flavors of the Olive Garden version, I sprinkle it with gorgonzola crumbles, chopped sun-dried tomatoes, and a drizzle of Balsamic glaze.  

I particularly love this one from Trader Joes, but if you’re feeling ambitious, you could also reduce your own balsamic vinegar down on the stove top until it’s nice and thick.

I’ve also used just a thicker balsamic vinegar before.  All work wonderfully, just don’t nix the balsamic, whatever you do!

close up photo of Pressure Cooker Cauliflower Fettuccine Alfredo

Go for a whole grain pasta for this dish too.  It marries beautifully with this sauce.  My favorite is the Tinkyada brand, but any whole wheat pasta will do.

White dinner plate with Cauliflower Fettuccine Alfredo made in an electric pressure cooker

In case you’re not feeling like pasta (does that ever happen?), this sauce can be used in so many other applications.  Stir it into rice for a creamy cheesy rice, use it as a dip for roasted veggies or warm crusty bread, or my favorite, use it as a pizza sauce and then top that with grilled chicken, bacon, gorgonzola, mozzarella, and slices of tomatoes.

Then finish it off with a drizzle of balsamic after it’s done cooking!  It’s heaven, it really is.

Pressure Cooker Cauliflower Fettuccine Alfredo spiraled onto a fork with a plate of it underneath the fork.

Now get cooking and enjoy a big bowl of the healthiest fettuccine alfredo you’ve ever had!

Cauliflower Fettuccine Alfredo Recipe

Pressure Cooker (Instant Pot) Cauliflower Fettuccine Alfredo

Pressure Cooker Cauliflower Fettuccine Alfredo

Yield: 6 servings
Prep Time: 5 minutes
Cook Time: 6 minutes
Additional Time: 14 minutes
Total Time: 25 minutes

This Olive Garden recipe is packed with a TON of veggie goodness! Dreamy, creamy fettuccine alfredo—ready in under 30 minutes!


  • 2 tablespoons butter
  • 2 cloves garlic
  • 7-8 cups cauliflower florets
  • 1 cup chicken or vegetable broth
  • 2 teaspoons salt
  • 2 cups spinach, coarsely chopped
  • 2 green onions, finely chopped
  • 1 pound fettuccine pasta, preferably whole grain
  • Gorgonzola cheese
  • Sun-dried tomatoes, chopped
  • Balsamic glaze or thick balsamic vinegar


Select saute on the pressure cooker and add butter. When melted, add garlic cloves and saute until fragrant, about 2 minutes, stirring constantly so the garlic doesn't burn. Add cauliflower, broth, and salt. Secure the lid and turn pressure release knob to a closed/sealing position. Cook at high pressure for 6 minutes.

While the cauliflower is cooking, heat a pot of water to boiling on the stove top. Add pasta and cook until al dente. Reserve about 1 cup of water and then drain the pasta. Return pasta to the empty pot.

When pressure cooking is complete, use a 10 minute natural release.

Blend with an immersion blender right in the pot until very smooth and silky, or carefully transfer to a blender and puree until smooth. By hand, stir in the chopped spinach and green onions and allow the hot sauce to wilt the spinach.

Pour sauce over the pasta and toss. Add a half cup or so of the reserved pasta water to the pasta if needed. The starchy water will help the sauce to stick to the pasta.

Serve hot with a garnish of gorgonzola cheese, sun-dried tomatoes, and a drizzle of balsamic vinegar.

The sauce heats back up very nicely so you could also make the sauce in advance and have it ready to pour over pasta for a quick, healthy, delicious meal any night of the week. Also amazing over rice, as a sauce on pizza, or a dip for bread and roasted veggies. It does it all!

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Nutrition Information:
Yield: 6 Serving Size: 1
Amount Per Serving: Calories: 321Total Fat: 6.7gSaturated Fat: 3gTrans Fat: 0gUnsaturated Fat: 3gCholesterol: 17mgSodium: 967mgCarbohydrates: 58.3gFiber: 7.7gSugar: 3.2gProtein: 11.9g

Nutrition information is calculated by Nutritionix and may not always be accurate.

1) Healthy Eating-DONE!

2) Become an Electric Pressure Cooker Master-DONE-ish

You’ll want to order our TIDBITS Master the Electric Pressure Cooker ecookbook to completely knock this one off your list.  You will love it!

cookbook cover - Master the Electric Pressure Cooker

For another healthy pressure cooker recipes from TIDBITS, try our pressure cooker buffalo chicken stuffed potatoes.

Buffalo Chicken Stuffed Potatoes
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