Kalyn's Kitchen

Cauliflower Crust Vegetarian Pizza

Cauliflower Crust Vegetarian Pizza can be cooked on the grill, but make it in the oven if it’s not grilling season. I love mushrooms and olives on this, but use any vegetarian toppings you prefer! 

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Cauliflower-Crust Vegetarian Pizza finished pizza with serving plate

Last year I started noticing cauliflower-crust pizza showing up on healthy cooking blogs, but I didn’t pay much attention to the idea until a few readers wrote and said they were sure I would love it.  One person sent me a link to this recipe from Eat. Drink. Smile. and that’s the one my nephew Jake and I used as our starting point when we decided to experiment with this Cauliflower Crust Vegetarian Pizza with Mushrooms and Olives.

It took us three different tries and the addition of both almond meal and grated Parmesan cheese to get a low-carb crust that we thought was about as crispy and bread-like as you could get when the main ingredient was cauliflower, but we both loved this final version of Cauliflower-Crust Vegetarian Pizza. I’m not sure this will ever replace regular pizza for some people, but if you’d like to try a pizza crust that’s low-carb, gluten-free, and more nutritious than regular crust made with flour, I think you’ll be pleased with this version.

What Equipment Do You Need to Cook Cauliflower Crust Pizza?

I have a pizza stone for the grill (affiliate link) and that seemed like the perfect way to cook pizza when it was hot outside, but the inspiring version was cooked in the oven so that will work too. Cooking times will be slightly longer if you don’t use a pizza stone. You’ll want to use a very hot oven, especially if you’re not using a pizza stone. If you have an oven with a convection setting, that would be great for this recipe.

Cauliflower-Crust Vegetarian Pizza process shots collage

How to Make Cauliflower Crust Vegetarian Pizza:

(Scroll down for complete printable recipe, including nutritional information.)

  1. Before you start to make the crust, start heating your pizza stone on the grill or in the oven. (If you don’t have a pizza stone, just heat the grill or oven.)
  2. You only need one cup of cauliflower for a crust, but we were going to make several versions, so we buzzed 1/2 large cauliflower in the food processor until it was finely chopped.
  3. Put 1 cup finely chopped cauliflower in the microwave and cook until the cauliflower is soft, 7-8 minutes for my microwave.
  4. I had a coarsely-grated mozzarella blend, so I used the food processor to chop it up so it would mix into the other crust ingredients better.  (This is way more cheese than the amount used for one pizza!)
  5. Combine the cooked cauliflower, cheese, almond meal, grated Parmesan, oregano, garlic powder, salt and a beaten egg to make the crust.
  6. Spray a sturdy cookie sheet with nonstick spray and then use your fingers to form the crust, spreading it as thin as you can get it.
  7. When your grill or oven temperature reaches 450F/230C, start cooking the crust (on the pizza stone if you have one.  (If you’re cooking on the grill without a pizza stone, heat the entire grill and then turn the heat off on one side too cook the crust.)
  8. While the crust cooks, cook the mushrooms and slice the olives.
  9. Take the crust out when it’s firm and lightly browned. Cover the crust with desired toppings.  We used low-sugar Rao’s Pizza Sauce (affiliate link), a small amount of finely grated Mozzarella, sauteed mushrooms, and black olives.
  10. I put the pizza back on the grill for about 5 minutes more to melt the cheese and heat the toppings, but if you’re cooking in the oven you can do this under the broiler.

Cauliflower-Crust Vegetarian Pizza with Mushrooms and Olives found on KalynsKitchen.com

Make it a Low-Carb Meal:

For a low-carb meal this would taste great with Ottolenghi’s Perfect Lettuce Salad with Radicchio, Radishes, Tomatoes, and Capers.

More Low-Carb Pizza You Might Like:

Air Fryer Pizza 
Sausage and Pepperoni Layered Pizza Bake
Low-Carb Deconstructed Pizza Casserole
Pepperoni Pizza Crustless Quiche
Low-Carb Pepperoni Pizza Chicken Bake
The Best Low-Carb and Gluten-Free Recipes with Pizza Flavors

Cauliflower Crust Vegetarian Pizza

Cauliflower Crust Vegetarian Pizza

Yield 2 servings
Prep Time 25 minutes
Cook Time 20 minutes
Total Time 45 minutes

This Low-Carb Cauliflower Crust Vegetarian Pizza can be cooked on the grill or in the oven.


Crust Ingredients

  • 1 cup finely chopped cauliflower (chop in food processor or grate with a cheese grater)
  • 1/2 cup finely grated mozzarella cheese
  • 5 T almond flour
  • 3 T finely grated Parmesan cheese
  • 1 tsp. dried oregano
  • 1/2 tsp. garlic powder
  • pinch of salt
  • 1 egg, beaten

Pizza Toppings

  • 1/4 cup Rao's Pizza Sauce (see notes)
  • 3 T finely grated mozzarella cheese
  • 4 oz mushrooms, sliced and cooked
  • 2 tsp. olive oil
  • 1/4 cup olives, sliced in half (or more)


  1. Turn on the oven or grill, place the pizza stone inside (if using), and preheat grill or oven to 450F/230C.   (If you don’t have a pizza stone I might let the temperature get slightly higher.)
  2. Use a food processor or the large side of a cheese grater to finely chop the cauliflower, until it resembles small kernels of rice.
  3. Put the cauliflower into a bowl and microwave until it’s cooked through and soft, about 7-8 minutes.  (Don’t add water; the cauliflower will release moisture.)
  4. While the cauliflower cooks, slice the mushrooms, heat the oil in a large frying pan, and cook mushrooms until they’re soft and cooked through. Slice olives in half lengthwise.
  5. If you don’t have finely grated Mozzarella, I would buzz it a few times in the food processor so it’s more finely grated.
  6. In a small bowl, combine the cooked cauliflower, 1/2 cup finely grated mozzarella, almond meal,  Parmesan cheese, dried oregano, garlic powder, and salt.
  7. Beat the egg with a fork and then mix it into the other ingredients, combining them well.
  8. Spray a heavy cookie sheet with non-stick spray. Form the crust ingredients into a ball and place on the cookie sheet, then use your fingers to form the crust, spreading it out as thin as you can get it.
  9.  Put the cookie sheet on the pizza stone in the oven or on the grill and cook with the door or lid shut until the crust is firm and lightly browned, about 13-15 minutes.  (If you’re cooking this crust on the grill without a pizza stone, you will need to preheat the entire grill, then turn off one side and cook the pizza on that side, using indirect heat from the side that’s still turned on. This will probably add a little to the cooking time.)
  10.  When the crust is done, spread with pizza sauce, sprinkle with cheese, and arrange cooked mushrooms and sliced olives on top.
  11.  Put pizza back on the grill to melt the cheese and warm the toppings, or turn the oven to broil and cook it under the broiler for about 3-4 minutes.
  12.  Serve hot. This reheats well, and is even good cold for breakfast!


If you can't find Rao's Pizza Sauce (affiliate link) use a sauce with the lowest carbs you can find.

Recipe adapted from Eat. Drink. Smile.

Nutrition Information:



Serving Size:


Amount Per Serving: Calories: 395Total Fat: 29gSaturated Fat: 9gUnsaturated Fat: 18gCholesterol: 130mgSodium: 764mgCarbohydrates: 13gFiber: 6gSugar: 3.9gProtein: 20g

Nutrition information is automatically calculated by the Recipe Plug-In I am using. I am not a nutritionist and cannot guarantee 100% accuracy, since many variables affect those calculations.

If you make this recipe I'd love to hear how it turns out. Leave a star rating or share on social media with the hashtag #KALYNSKITCHEN, thanks!

Low-Carb Diet / Low-Glycemic Diet / South Beach Diet Suggestions:
Cauliflower-Crust Vegetarian Pizza would be an approved recipe for most low-carb and low-glycemic diet plans as long as you use low-sugar pizza sauce. For the South Beach Diet there’s quite a bit of fat in this pizza from mozzarella cheese, Parmesan cheese, almond meal, and olives, so you might consider this a “once-in-a-while-treat” and only have half the pizza shown here for phase one or two of the original South Beach Diet.

Find More Recipes Like This One:
Use Pizza Recipes to find more recipes with Pizza flavors. Use the Recipes by Diet Type photo index pages to find more recipes suitable for a specific eating plan. You might also like to Follow Kalyn’s Kitchen on Pinterest to see all the good recipes I’m sharing there.

Pinterest image of Cauliflower Crust Vegetarian Pizza

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    61 Comments on “Cauliflower Crust Vegetarian Pizza”

  1. OMG perfect!!!!! I loved it, my husband loved it too.I took pictures but I can’t post them

  2. I have a question: what are T’s? (5 T almond flour/3 T finely grated Parmesan cheese)

    • On all my recipes T = tablespoon and tsp. = teaspoon. Sorry that was confusing, but I’ve been doing it that way for 15+ years so I can’t change now!

      • Thank you for answering so quickly. I’m not American, I don’t know English very well, I just wanted to make sure before I try. It sounds delicious! 

    • No problem! I always try to reply quickly unless I am away from the computer.

  3. Love this recipe but this sticks to my pan every time. I’ve used non stick already but I don’t use non-stick pans. Are there any other suggestions? Would parchment paper stop it from crisping? Has anyone tried?

  4. My husband is now on a Keto diet, at the recommendation of his cardiologist.  A relative gave me your website information and the first food I searched for was a cauliflower crust for pizza.  I got the ingredients today, made it, and it’s GONE!  We loved it!  The crust was thin and browned at the edges, just the way we like pizza crust.  I put on a very thin layer of low carb pasta sauce.  Hubby’s side had low carb Keto meatballs, mine had sautéed baby bellas and onions.  I topped all with turkey pepperoni and a sprinkling of pizza cheese blend.  This was a really delicious pizza, with over 90% of the crust being cauliflower (as opposed to the pricey store bought cauliflower pizzas).  Thank you!  Tomorrow I’m looking to make your chicken thighs with mushrooms, onions and rosemary!

  5. Pingback: 12 Vegetarian Keto Recipes to Make for Dinner

  6. I was using a different cauliflower crust recipe, but this one has better elements. I will say, though, that if you wring out the water from the cooked cauliflower, your crust will be a little crispier/dryer. Otherwise, the taste is terrific, I'm eating a slice now!

    • Sounds like I need to try that Jeanette. I was cooking it on a VERY hot grill so I think that dried out the cauliflower quite a bit.

  7. Amber, so glad you liked it!

  8. Delicious! I forgot to microwave the cauliflower and it still turned out. It would be even better if I hadn't forgotten that part. I cooked the crust in the oven for almost 20 minutes before topping it.

  9. Thanks, Kalyn. I made it in a traditional pizza pan without going all the way to the edges. I had a little trouble with the cauliflower (I eat it a lot, but never did the rice thing – I wasn't watching it in the microwave and it turned into a burned hockey puck), but succeeded on my second try. The crust is really tasty. A bit high in calorie and fat for me (I made 1/3 pizza a serving) but yummy. Thanks for your help.

  10. Ann, the size is kind of determined by your pan. I just measured and that pan I used is 9 inches across, so the pizza was slightly smaller than that!

  11. I'm sorry if I missed it, but what diameter pizza have you made in the photos? Thanks.

  12. Yaay Sarah, and thanks for suggesting it!

  13. Just so everyone knows… I was one of those readers who suggested Kalyn try cauliflower cust pizza… so, it's kinda like I'm famous…. 😀

  14. Just wanted to thank you–this was incredible! My husband is on a low-carb diet, and I try to eat fewer processed carbs, so I thought I'd give this a go…and wow, we were both really impressed. I topped it with roasted peppers and onions, but all other ingredients were more or less the same.