Butternut Squash Caramelized Onion Pizza Recipe

Butternut Squash Pizza with Caramelized Onion

Flat Bread Butternut Squash Pizza with Caramelized Onions and Spinach melds buttery fall flavors and will have everyone looking forward to pizza night!
Course Main Course
Cuisine American
Prep Time 10 minutes
Cook Time 20 minutes
Total Time 35 minutes
Servings 4 servings
Calories 418kcal
Author Marjory Pilley


  • 1 cup Slow Cooker Caramelized Onions or make the caramelized onion recipe below
  • 4 cups butternut squash peeled and diced into small ½ inch size cubes
  • 1 Tablespoon olive oil
  • 1 Tablespoon butter or vegan substitute
  • 6 ounce baby spinach leaves
  • 4 slices flat bread
  • 2 cups mozzarella cheese or vegan substitute, shredded

Ingredients needed to make caramelized onions on stove-top

  • 1 Tablespoon butter
  • 1 Tablespoon olive oil
  • 3 yellow onions sliced thin (about 2 cups)


  • Heat olive oil and butter over medium-high heat.
  • Add butternut squash and saute for about 5-7 minutes or until squash is just about fork tender.
  • Add spinach leaves and saute for about 3 minutes more or until spinach has wilted. Stir in caramelized onions.
  • Pre-bake flat breads according to instructions. (I baked mine for 3 minutes in a 375 F oven.)
  • Remove flat breads from oven.
  • Distribute ¼ of the butternut squash, spinach and onion mixture over each slice of flat bread.
  • Sprinkle 1/2 cup mozzarella cheese over the top of each slice.
  • Return flat bread to the oven and cook for 4-5 minutes more or until cheese has melted.

Directions to Make Caramelized Onions on the Stove-Top

  • Melt butter in a large pan over medium-low heat.
  • Add olive oil and onions to pan and stir to coat.
  • To caramelize onions, cook onions over medium-low heat for about 30 minutes. Check and turn onions every 5-10 minutes until the onions are brown, but not burnt.


Butternut squash can be peeled and diced up to two days ahead of time.


Serving: 4g | Calories: 418kcal | Carbohydrates: 50g | Protein: 20g | Fat: 16g | Saturated Fat: 8g | Cholesterol: 43mg | Sodium: 654mg | Potassium: 917mg | Fiber: 5g | Sugar: 6g | Vitamin A: 19225IU | Vitamin C: 45.7mg | Calcium: 600mg | Iron: 3mg