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Brussels Sprouts Pizza with Balsamic Red Onions Recipe

Published: Sep 12, 2026 by Rosa · This post may contain affiliate links · Leave a Comment

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If you love bold flavors with a satisfying crunch, then you are absolutely going to adore this Brussels Sprouts Pizza with Balsamic Red Onions Recipe. It’s a mouthwatering combination of caramelized tangy onions softened in rich balsamic vinegar paired with crispy, tender Brussels sprouts that bring a fabulous earthiness to every bite. The melty mozzarella and nutty Parmesan add the perfect cheesy balance on a wholesome whole wheat crust for a pizza experience that feels both fresh and comfortingly familiar. Trust me, this is one of those recipes you’ll want to make again and again to impress friends or enjoy a cozy night in.

Ingredients You'll Need

The image shows two separate close-up shots side by side. On the left, thin, round slices of purple onion are stacked, revealing their layered rings in shades of pale purple and white, with soft texture and slight translucence. On the right, round, green Brussels sprouts with crisp leaves sit inside a white colander with holes and metal handles, placed on a white marbled surface with bright light casting soft shadows. The colors contrast nicely between the purple onions and vibrant green sprouts, with the shiny, textured surface of the colander adding detail photo taken with an iphone --ar 4:5 --v 7

All the ingredients in this Brussels Sprouts Pizza with Balsamic Red Onions Recipe are straightforward but vital. Each really pulls its weight, whether it’s adding depth, texture, or those irresistible flavors that make every slice unforgettable.

  • Olive oil: Use quality olive oil to bring richness and help vegetables caramelize beautifully.
  • Red onion: Thinly sliced for that sweet, balsamic-soaked softness that melts right into the pizza.
  • Red pepper flakes: Just a pinch adds a subtle spicy hint that keeps the flavors lively.
  • Salt: Enhances every ingredient and balances the natural sweetness.
  • Balsamic vinegar: Concentrates the onions with tangy depth that dances on the palate.
  • Brussels sprouts: Halved and torn for a delightful mix of textures, from crisp edges to tender centers.
  • Whole wheat pizza dough: Provides a hearty, nutty base that complements the veggie toppings perfectly.
  • Mozzarella cheese: Adds melty creaminess that pulls everything together.
  • Parmesan cheese: Sprinkled on top for sharp, nutty flavor and an irresistible finish.

How to Make Brussels Sprouts Pizza with Balsamic Red Onions Recipe

Step 1: Preheat and Prepare the Oven

Start by heating your oven to 425 degrees Fahrenheit and placing a pizza stone on the middle rack if you have one—this step is key for achieving that perfectly crisp crust. If you don’t have a pizza stone, no worries; a cookie sheet will do just fine. Get ready for some seriously delicious pizza magic.

Step 2: Prepare the Brussels Sprouts

Trim the tough ends off your Brussels sprouts and peel off the outer leaves for a nice variety of textures on your pizza. Half of the sprouts should be torn into leaves while you slice the rest into thin strips to ensure they cook evenly. Toss everything lightly with olive oil, salt, and fresh black pepper so each piece is perfectly seasoned and ready to roast up crisp and tasty.

Step 3: Cook the Balsamic Red Onions

Warm olive oil in a skillet and gently cook your thinly sliced red onions with a pinch of red pepper flakes and salt until soft and sweet. Pour in the balsamic vinegar and let it reduce until thick and syrupy, infusing the onions with that incredible tang that makes this pizza stand out. Set aside to cool slightly—this layer of flavor is going to be a star.

Step 4: Roll Out the Dough

Whether you’re using homemade dough or store-bought, roll it out as thin and even as you comfortably can on parchment paper—this not only helps with easy transfer to the oven but also creates a wonderful crispy base. Thin crust is key for allowing the toppings to shine without overwhelming the palate.

Step 5: Assemble Your Pizza

Begin layering with the balsamic red onions, spreading them evenly across the dough. Next comes a generous layer of mozzarella cheese, followed by the prepared Brussels sprouts, and finally a sprinkle of Parmesan cheese. This layering ensures every slice is packed with flavor and texture.

Step 6: Bake and Finish

Transfer your pizza to the oven—whether on stone or baking sheet—and bake until the crust is golden, cheese bubbly, and Brussels sprouts reach a lovely crispiness around the edges, typically 10 to 14 minutes. When it’s out of the oven, add a light sprinkle of freshly ground black pepper and a pinch of red pepper flakes if you like a touch more heat. Slice it up and get ready to fall in love.

How to Serve Brussels Sprouts Pizza with Balsamic Red Onions Recipe

A single slice of pizza sits on a white plate with a wavy edge, placed on a white marbled surface. The pizza has three layers: the bottom is a thin, golden-brown crust with a slightly crispy texture, the middle layer consists of melted white cheese with a soft, creamy look, and the top layer features light green, slightly charred Brussels sprout leaves scattered unevenly with bits of dark brown mushrooms and red pepper flakes sprinkled across. The crust edge is thicker and golden with some browned spots. Photo taken with an iphone --ar 4:5 --v 7

Garnishes

A sprinkle of fresh herbs like thyme or basil adds a bright finish that contrasts beautifully with the roasted veggies. A light drizzle of extra virgin olive oil just before serving also adds that fresh, luscious mouthfeel that makes every bite sing.

Side Dishes

This pizza pairs wonderfully with a crisp green salad dressed in lemon vinaigrette or a bowl of roasted garlic soup to keep things light but satisfying. The brightness of fresh greens balances the richness on the pizza perfectly.

Creative Ways to Present

Try serving the pizza sliced into smaller squares for parties or a casual get-together. You can also add a scattering of toasted pine nuts or walnuts on top for extra crunch and a lovely nutty warmth that complements the balsamic onions and Brussels sprouts beautifully.

Make Ahead and Storage

Storing Leftovers

Keep leftover Brussels Sprouts Pizza with Balsamic Red Onions Recipe in an airtight container in the refrigerator for up to three days. The flavors deepen overnight, but the crust might lose some crispness.

Freezing

You can freeze baked slices wrapped tightly in plastic wrap and foil for up to two months. Thaw in the refrigerator overnight before reheating to preserve flavor and texture.

Reheating

Reheat leftover pizza in a hot oven or toaster oven at 375 degrees Fahrenheit for about 8 to 10 minutes. This helps revive the crispiness of the crust and melts the cheese just right without making it soggy.

FAQs

Can I use other types of cheese in this Brussels Sprouts Pizza with Balsamic Red Onions Recipe?

Absolutely! While mozzarella and Parmesan are classic, feel free to experiment with fontina, gouda, or even a sprinkle of goat cheese for a tangier twist. Just keep in mind the melting characteristics to maintain that luscious cheesy layer.

Is it necessary to cook the red onions before adding them to the pizza?

Yes, cooking the onions with balsamic vinegar softens them and develops their sweetness and tanginess. Raw onions would be too sharp and overpower the delicate balance in this recipe.

Can I prepare the toppings in advance?

Definitely. The balsamic red onions and seasoned Brussels sprouts can be prepared a day ahead and kept refrigerated. This makes assembly quick and easy, which is perfect for busy weeknights or when you want to entertain without stress.

What if I don’t have a pizza stone?

No problem at all! Just bake your pizza on a lightly oiled baking sheet or cookie sheet. You might miss out on the extra crispness the stone provides, but the pizza will still be delicious.

How do I know when the pizza is done baking?

Look for a golden crust with some crispy spots on the edges, bubbly melted mozzarella, and Brussels sprouts that have some slight browning and crisp edges. Usually, about 10 to 14 minutes at 425 degrees Fahrenheit will do the trick.

Final Thoughts

I’m truly excited for you to try this Brussels Sprouts Pizza with Balsamic Red Onions Recipe because it brings together a wonderful blend of textures and flavors that feel both indulgent and fresh. Whether you’re cooking for yourself or sharing with friends, it’s a vibrant, wholesome pizza that breaks away from the ordinary and fills your kitchen with irresistible aromas. Give it a go—you might just discover your new favorite pizza topping combo!

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Brussels Sprouts Pizza with Balsamic Red Onions Recipe

Brussels Sprouts Pizza with Balsamic Red Onions Recipe
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A delicious and unique Brussels Sprouts Pizza featuring caramelized balsamic red onions, fresh shredded Brussels sprouts, and a blend of mozzarella and Parmesan cheeses on a whole wheat crust. This recipe balances savory, tangy, and crispy textures for a flavorful twist on traditional pizza, perfect for a healthy and satisfying meal.

  • Author: Rosa
  • Prep Time: 15 minutes
  • Cook Time: 20 minutes
  • Total Time: 35 minutes
  • Yield: 1 serving
  • Category: Main Course
  • Method: Baking
  • Cuisine: Italian-American
  • Diet: Vegetarian

Ingredients

For the Balsamic Red Onions

  • 1 to 2 tablespoons olive oil
  • 2 medium or 1 extra-large red onion, thinly sliced
  • Pinch of red pepper flakes
  • Pinch of salt
  • ¼ cup balsamic vinegar

For the Brussels Sprouts

  • 8 ounces (½ pound) Brussels sprouts
  • 1 ½ to 2 teaspoons olive oil
  • Salt and freshly ground black pepper, to taste

For the Pizza

  • 1 batch easy whole wheat pizza dough or store-bought whole wheat dough (e.g., Trader Joe’s)
  • 1 ½ to 2 cups grated low-moisture part-skim mozzarella cheese (6 to 8 ounces), depending on desired cheesiness
  • ¼ cup grated Parmesan cheese

Instructions

  1. Preheat Oven and Prepare Pizza Stone: Preheat your oven to 425°F (220°C) and place a pizza stone on the middle rack if available for optimal crust crispiness.
  2. Prepare the Brussels Sprouts: Trim off the tough ends of the Brussels sprouts and separate the outer leaves by hand, discarding any tough parts. Slice about half of the Brussels sprouts thinly from top to bottom. Drizzle all Brussels sprouts and leaves with 1 ½ teaspoons olive oil, toss well to coat, and season with salt and freshly ground black pepper. Set aside.
  3. Cook the Red Onions: Heat 1 tablespoon olive oil in a large skillet over medium heat. Add the thinly sliced onions, a pinch of red pepper flakes, and a pinch of salt. Toss to combine. Cover and cook, stirring occasionally, for about 10 minutes or until the onions are soft. Pour in the balsamic vinegar, stir, and cook uncovered a few more minutes until the vinegar condenses and is mostly absorbed. Remove from heat and let cool.
  4. Prepare the Dough: Roll out your whole wheat pizza dough on parchment paper as thin as possible while keeping an even surface, according to package or recipe directions. If using store-bought dough, roll into one pizza; if homemade, you can make two pizzas.
  5. Assemble the Pizza: Spread an even layer of the balsamic red onions over the dough. Sprinkle mozzarella cheese evenly over the onions. Distribute the prepared Brussels sprouts on top, then finish with grated Parmesan cheese.
  6. Bake the Pizza: Transfer the pizza (with parchment paper) to the preheated oven or pizza stone. Bake for 10 to 14 minutes until the crust is golden, cheese is bubbly, and Brussels sprouts edges become crispy. If you have another pizza, repeat this process. Remove from oven.
  7. Finish and Serve: Sprinkle the baked pizza lightly with freshly ground black pepper and additional red pepper flakes if desired. Slice and serve immediately for the best flavor and texture.

Notes

  • Thinly slicing the onions and Brussels sprouts helps them cook evenly and develop the best texture.
  • If you don’t have a pizza stone, a baking sheet or cookie sheet works perfectly well.
  • You can adjust the amount of mozzarella cheese depending on how cheesy you like your pizza.
  • For a crispier crust, preheat the pizza stone for at least 30 minutes before baking.
  • The balsamic vinegar adds a lovely tang and sweetness that balances the savory vegetables and cheese.
  • Use parchment paper for easy transfer of the pizza to the oven and to prevent sticking.

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Hi, I'm Rosa

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