Easy Roasted Whole Cauliflower with Homemade Creamy Alfredo Sauce

If you love cauliflower, take it to the next level by roasting your cauliflower whole. Add in a creamy alfredo sauce made from scratch, and you have an incredible dish.

A hand sprinkling sunflower seeds on a roasted whole cauliflower

Have you tried to bake a whole cauliflower head yet?

Whole, not chopped up in pieces!

I had no idea how good a whole oven roasted cauliflower could be. I have seen them at restaurants, and skipped right over them when they were on the menu.

I feel pretty silly now because OMG this roasted cauliflower recipe is not only tasty, but roasted whole cauliflowers are so easy to make. They can even be a part of a sheet pan dinner! Toss on a pan and bake with your other dinner items! Add my easy creamy alfredo sauce recipe, and you have a delicious easy meal!

Mr. Fearless Dining reports that this baked whole cauliflower that we roasted and topped with my easy four ingredient homemade alfredo sauce is restaurant quality…better than anything he has tried. (And yes, Mr. Fearless Dining is the one who ALWAYS orders the roasted whole cauliflower off the menu!)

Roasting a Whole Cauliflower Head next to a roast wrapped in bacon in a pan

Just in case you thought I was kidding about the one pan dinner idea, this is how I cooked this gem. Side by side with a roast wrapped in bacon! If you love the one-pan meal idea, this easy Blackberry Tarragon Chicken Dinner is another dinner recipe to try.

Oven roasted whole cauliflower head sitting on a plate.

You can see the beautiful crust that bakes into this baked cauliflower head. It is perfect for holding sauces. I decided to make my kids’ favorite easy four ingredient homemade alfredo sauce to top this roasted cauliflower recipe. This cauliflower would make a beautiful side dish for entertaining.

Pouring homemade alfredo sauce over a roasted whole cauliflower

If you haven’t made an alfredo sauce from scratch yet, you will LOVE how easy this is to make. This sauce is so good on pasta, vegetables, baked potatoes, anywhere you could put a sauce. This alfredo sauce is even delicious on gluten free pizza instead of a red sauce!!

Are you ready to give this easy homemade alfredo sauce recipe a try?

Roasting garlic in oil

Saute olive oil and garlic.

Simmering homemade alfredo sauce in pan

Add heavy cream.

Homemade Alfredo Sauce simmering in a pan

Add parmesan cheese. Simmer until it boils gently.

This is the ultimate sauce for all of your cooking!! If you LOVE cauliflower, you should also try this Turmeric Lime Cauliflower recipe. Even my kids love it.

Top view of a whole roasted cauliflower topped with alfredo sauce

Add in some sunflower seeds or pumpkin seeds and scallions and enjoy!

(*Please note this post has affiliate links. Ordering through my site will not change the price you pay. A tiny commission will come to Fearless Dining to help offset the cost of running this blog. I truly appreciate the support.)

Things You Need To Make This Recipe:

  1. A roasting pan is definitely a plus for roasting. You can get one big enough to include other foods too!
  2. Use a basting brush to spread the olive oil onto the cauliflower evenly.

How to Roast a Whole Cauliflower

5 from 1 vote
Roasted Whole Cauliflower with Homemade Alfredo Sauce
Prep Time
7 mins
Cook Time
25 mins
Total Time
32 mins

Easy whole roasted cauliflower with four ingredient alfredo sauce.

Course: Side Dish
Cuisine: American
Servings: 2 people
Calories: 180 kcal
Author: Sandi Gaertner
  • 1 head cauliflower
  • 1 teaspoon olive oil
  • salt and pepper to taste
  • 1/2 cup heavy cream
  • 1 large garlic clove, minced or 2 small cloves
  • 1/2 cup heavy cream
  • 2 tablespoons parmesan cheese
  1. Preheat the oven to 375 degrees.

  2. Wash a cauliflower and cut off the leaves.

  3. Place in pan. Brush with olive oil, then sprinkle with salt and pepper.

  4. Bake for 30 minutes, or until golden.

  5. In a saucepan, add oil and garlic. Saute 2 minutes.

  6. Add heavy cream. Turn heat to low and simmer until it gently boils.

  7. Turn off heat and add parmesan cheese.

  8. Drizzle the sauce over the roasted cauliflower. Sprinkle with sunflower seeds and scallions. Eat hot.

Nutrition facts per serving (1g)
180kcal | Fat: 10g | Saturated fat: 7g | Monounsaturated fat: 5g | Cholesterol: 40mg | Sodium: 144mg | Potassium: 666mg | Carbohydrates: 11g | Fiber: 5g | Sugar: 5g | Vitamin A: 9% | Vitamin C: 162% | Calcium: 5% | Iron: 5%

More Yummy Gluten Free Recipes to Try!!






  1. I don’t know why I’ve never roasted a whole cauliflower before. I always chop it up. This looks amazing!

  2. that looks heavenly – love the crust on the cauliflower

  3. Never thought of roasting it whole! always cut the florets and fried! This is so good.

  4. As much as I love the idea of a roasted cauliflower head, you really got me distracted by that bacon wrapped roast! Both look mouth watering!

  5. Cauliflower is becoming my favorite vegetable. It can so easily transform into anything we want. This recipe looks delicious!

  6. Loving the idea of an Alfredo sauce over a whole roasted cauli, that really sounds like the perfect garnish!

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