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    Home » Recipes » Meatless

    Pumpkin Pizza with Pumpkin Pizza Sauce

    UPDATED Oct 20, 2021 · PUBLISHED Oct 20, 2021 BY Marjory Pilley · This post may contain affiliate links. As an Amazon Associate I earn from qualifying purchases.

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    Slices of pumpkin pizza on a cutting board.

    Make Pumpkin Pizza with easy pumpkin pizza sauce, caramelized onions, and spinach. Or, use our ultimate toppings list to create your own masterpiece. It's an easy way to give a seasonal twist to pizza night.

    Two slices of pumpkin pizza with pumpkin pizza sauce, caramelized onions, and spinach.

    Creamy pumpkin pasta sauce stands in for marinara to give this pizza a subtle fall flair. By the way, the same sauce can be used for your favorite pasta dishes too!

    When you hear "Pumpkin Pizza," you might think of roasted squash cubes like our Butternut Squash Pizza. Or, you might imagine a crust infused with pumpkin.

    That's not what's happening here.

    The pizza sauce and the caramelized onions can both be made in advance. If they are, and you use flatbread as the base, then this dinner is ready in about 10 minutes!

    Jump to:
    • Ingredients and Substitutions
    • Pumpkin Pizza Sauce Directions
    • How to Caramelize Onions
    • Pumpkin Flatbread Pizza Assembly
    • Toppings for Pumpkin Pizza
    • More Fall Recipes
    • 📋 Recipe

    Ingredients and Substitutions

    Here's what you need to make pumpkin pizza:

    Labeled ingredients to make pumpkin flatbread pizza.
    • Flatbread or Pizza Dough - We used flatbread because it bakes quickly and reduces the calorie count too. Most any base will work, including spaghetti squash pizza crust.
    • Caramelized Onions - The process to make these is discussed below.
    • Spinach - Chopped kale and arugula are alternatives.
    • Mozzarella Cheese - Havarti, fontina, and Gruyère would be nice too.
    • Pumpkin Pizza Sauce - The ingredients to make it are shown below. You can often find this type of sauce in the grocery store in the cooler months.

    For the pumpkin sauce, you will need the items pictured. Half and half or whole milk may be used instead of heavy cream if desired.

    Labeled ingredients to make pumpkin pizza sauce.

    Pumpkin Pizza Sauce Directions

    This versatile pumpkin sauce works well in this recipe because it's smooth, just like traditional sauce. However, the consistency is a little thicker than a red sauce. If you want to thin it out, simply add a teaspoon of water. Taste test before adding more.

    Here are the steps to make it:

    Numbered steps to make recipe.
    1. Heat olive oil over medium heat in a medium-sized saucepan. Add garlic and sauté for about 1 minute to soften.
    2. Add pumpkin puree, heavy cream, nutmeg, salt, and pepper to the pan.
    3. Whisk until smooth. Bring sauce to the point where it's just about to boil and then reduce heat to simmer and cook for about 4-5 minutes.
    4. Stir in Parmesan cheese.

    Yield: 2 cups of sauce. Each serving is ⅓ of a cup.

    Note: This recipe makes more sauce than you will need to make 4 servings.

    Storage: Store pumpkin pizza sauce in a covered container in the refrigerator for 3-4 days or in the freezer for up to 3 months. Defrost overnight in the refrigerator.

    Reheat: Sauce may be used hot or cold. Warm over medium-low heat on the stovetop, stirring to recombine ingredients.

    2 Mason Jars with pumpkin pizza sauce.

    How to Caramelize Onions

    Caramelized onions pair perfectly with pumpkin in this recipe. The extra effort is totally worth it too!

    If you made a big batch of Slow Cooker Caramelized Onions, just defrost a portion for use in this recipe!

    Otherwise, follow these steps to make them on the stovetop.

    Numbered pictures to make caramelized onions on the stovetop.
    1. Melt butter and olive oil in a large skillet.
    2. Add thinly sliced onions (about ⅛ inch in thickness) to the pan and coat with butter/oil mixture.
    3. Cook onions for 20-30 minutes over medium heat, stirring and scraping up brown bits every 3-5 minutes. The onions need undisturbed time so they can brown. But, they can't sit for too long because they will burn. If the pan becomes too dry, then add a teaspoon of water. Picture #3 is at 5 minutes.
    4. When the onions are browned to your liking, remove them from the pan. You can also deglaze the pan with a little balsamic vinegar or wine to add even more flavor.

    Note: The best pan for this process is a cast iron skillet. But, onions can be caramelized in a non-stick skillet, which I used in the pictures.

    Pumpkin Flatbread Pizza Assembly

    Here's how to put it together.

    But first, pre-cook the flatbread (or pizza dough.) We use Flatout Thin Pizza Crusts. The directions all for the crusts to bake at 375 °F for about 2 minutes!

    Numbered steps to assemble flatbread pumpkin pizza.
    1. Spread pumpkin pizza sauce over the flatbread.
    2. Top with caramelized onions.
    3. Chop spinach into thin slices and sprinkle over the top.
      • Easy way to julienne spinach: Stack 5-6 spinach leaves on top of each other, roll them long ways, and then cut them into thin slivers with a knife or kitchen shears.
    4. Sprinkle mozzarella cheese over the top and bake for about 5 minutes or until the cheese is melted.

    Suggested quantities are listed in the recipe card. Of course, adjust everything according to your preferences!

    Toppings for Pumpkin Pizza

    Other toppings or variations to try:

    • Flavor with sage instead of spinach - I so wanted to love crispy, fried sage and I did give it a try. I wasn't a big fan.
    • Apple slices or cubes
    • Crumbled Bacon
    • Mushrooms (you can cook these along with the onions!)
    • Sausage, ham, prosciutto
    • Toasted pumpkin seeds
    • Toasted pine nuts

    Did I miss a great topping? Add it in the comments!

    Cut slices of pumpkin pizza on a cutting board.

    More Fall Recipes

    • Pumpkin Dip with Cream Cheese
    • Pumpkin Juice Recipe - Harry Potter Style
    • Butternut Squash Quesadillas

    Did you make this recipe?
    Please leave a rating and tell us how you liked it!

    📋 Recipe

    Two slices of pumpkin pizza with pumpkin pizza sauce, caramelized onions, and spinach.

    Pumpkin Pizza with Pumpkin Pizza Sauce

    Make Pumpkin Pizza with easy pumpkin pizza sauce, caramelized onions, and spinach to give a seasonal twist to pizza night.
    5 from 2 votes
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    Course: Main Course
    Cuisine: American
    Prep Time: 10 minutes
    Cook Time: 15 minutes
    Caramelize Onions: 30 minutes
    Total Time: 45 minutes
    Servings: 4 servings
    Calories: 425kcal
    Author: Marjory Pilley

    Ingredients

    Caramelized Onions

    • 1 teaspoon butter
    • 1 teaspoon olive oil
    • 1 onion sliced about ⅛ inch (about 2 cups)

    Pumpkin Pizza Sauce

    • 1 Tablespoon olive oil
    • 2 garlic cloves minced
    • 1 cup pumpkin puree not pumpkin pie filling
    • 1 cup heavy cream half and half or whole milk may be used
    • ¼ teaspoon ground nutmeg
    • ¼ teaspoon salt
    • ¼ teaspoon pepper
    • 2 Tablespoons Parmesan cheese grated

    Pizza Assembly

    • 4 slices flatbread may use pizza dough instead
    • 1 ⅓ cups Pumpkin Pizza Sauce
    • 1 cup baby spinach leaves stacked, rolled and cut into slivers
    • 1 cup mozzarella cheese shredded
    • ½ cup caramelized onion see directions above

    Instructions

    Caramelized Onions

    • Melt butter and olive oil in a large skillet.
    • Add thinly sliced onions to the pan and coat with butter/oil mixture.
    • Cook onions for 20-30 minutes over medium heat, stirring and scraping up brown bits every 3-5 minutes. The onions need undisturbed time so they can brown. But, they can't sit for too long because they will burn. If the pan becomes too dry, then add a teaspoon of water.
    • When the onions are browned to your liking, remove them from the pan. You can also deglaze the pan with a teaspoon of balsamic vinegar or wine to add even more flavor if desired.

    Pumpkin Pizza Sauce

    • Melt olive oil over medium-heat in a saucepan. Add garlic and sauté for about 1 minute to soften.
    • Add pumpkin puree, heavy cream, nutmeg, salt, and pepper to the pan and whisk until smooth.
    • Bring sauce to the point where it's just about to boil and then reduce heat to simmer and cook for about 4-5 minutes. Stir in Parmesan cheese.

    Pumpkin Flatbread Pizza Assembly

    • Preheat oven to 375 °F or according to directions for flatbread.
    • Pre-bake flatbread according to instructions. (I pre-baked mine for 2 minutes at 375 °F.)
    • Spread about ⅓ cup of Pumpkin Pizza Sauce over each slice of flatbread.
    • Layer ¼ of the onions, spinach and mozzarella cheese over the sauce on each slice of flatbread.
    • Return flatbread to the oven and cook for 4-5 minutes more or until cheese has melted.

    Notes

    See Post for Pictures and More Expert Tips
    • This recipe can be made with traditional pizza dough. 
    • Use one cup of Slow Cooker Caramelized Onion instead of making them scratch on serving day!
    Notes on Pumpkin Pizza Sauce
    • Yield: 2 cups of sauce. Each serving is ⅓ of a cup.
    • Note: This recipe makes more sauce than you will need to make 4 servings.
    • Storage: Store sauce in a covered container in the refrigerator for 3-4 days or in the freezer for up to 3 months. Defrost overnight to the refrigerator.
    • Reheat: Sauce may be used hot or cold. Warm over medium-low heat on the stovetop, stirring to recombine ingredients.
    Grab 5 Low-Carb Saucesand get more easy, healthy recipes! JOIN HERE

    Nutrition

    Calories: 425kcal | Carbohydrates: 33g | Protein: 14g | Fat: 27g | Saturated Fat: 14g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 9g | Trans Fat: 1g | Cholesterol: 80mg | Sodium: 603mg | Potassium: 225mg | Fiber: 3g | Sugar: 3g | Vitamin A: 7876IU | Vitamin C: 6mg | Calcium: 214mg | Iron: 1mg
    Nutritional and Food Safety Disclaimer

    The recipe was originally published on 9/29/14 and has been updated to improve the reader experience.

    More Meatless Recipes

    • Spaghetti Squash Pizza Crust Recipe
    • Crock-Pot Vegetable Lasagna
    • Creamy Pumpkin Pasta Sauce Recipe
    • Fried Zucchini Cakes Recipe
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      Recipe Rating




    1. christine

      September 30, 2014 at 11:20 am

      This is such an amazing idea. I made a different pumpkin yogurt sauce last week and I think I could use up my saved sauce on a pizza like this. Awesome, thanks!

      Reply
    2. Taryn

      October 11, 2018 at 7:57 pm

      5 stars
      Pumpkin pizza! This is my love language. lol. Great recipe!

      Reply
    3. Stephanie Miller

      October 11, 2018 at 9:25 pm

      5 stars
      What a perfect Fall pizza night idea!! And I loved the tip for cutting the spinach into juliene strips!! Thanks!

      Reply
    4. Deb

      February 14, 2019 at 7:13 pm

      I have made this flatbread twice. I added more nutmeg to the pumpkin sauce and used goat cheese in the second round. Awesome changes! Definitely would recommend making this.

      Reply
      • Marjory

        February 15, 2019 at 7:12 am

        Love your changes! Thanks for sharing!

        Reply

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