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Pesto Flatbread Pizza Recipe with caramelized onions – this EASY 4 ingredient pizza recipe is the perfect appetizer. Pesto, caramelized onions, and mozzarella baked onto a pizza crust – every time I make this people rave about it!
Best Flatbread Pizza Recipe
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Caramelized onion pesto flatbread is one of those easy appetizer recipes that I make for every party. Every single one! It’s always the first thing to disappear and people always rave about how amazing it is. I say thank you while they ooooh and aaaaah and pretend I slaved over a hot stove all day, when in fact it, takes less than 30 minutes to make this recipe.
Flatbread Pizza is so easy to make when you start with a prepared pizza crust and then top it with pesto and onions!
Ingredients in Easy Flatbread Pizza
- Pizza Crust – I love taking semi-homemade help from the store and using Pillsbury pizza crust but this would also work with my homemade pizza crust recipe.
- Pesto – While pizza sauce is great, homemade pesto is even better!
- Onions – I cook these in some olive oil to get them all nice and caramelized for the top.
- Mozzarella Cheese – shred your own cheese for best melting!
How to caramelize onions:
The onions are the most labor intensive thing to make for this recipe and even they’re easy! Usually I’ll make a big batch to use over a few days. I simply cook my onions over medium heat in some oil with a sprinkling of sugar until they’re browned and caramelized. I don’t love onions but I love them when they’re caramelized!!
How to make a flatbread pizza
- Spread your dough out onto a cookie sheet brushed with olive oil.
- Top with pesto, cheese, and onions.
- Bake then eat!
I think of flatbread dough as a thinner crust pizza. Some restaurants make it crunchy and think like a cracker, but my recipe uses pizza crust.
Cook the pizza at a high temperature to get a crisp bottom.
The best way to reheat leftover pizza is in the air fryer or a frying pan to crisp up the bottom!
Caramelized Onion Pesto Flatbread
- 1 tablespoon olive oil
- 1 medium onion sliced
- 1 teaspoon granulated sugar
- 1 prepared pizza crust (from scratch or from the refrigerated section, like Pillsbury)
- ½ cup pesto
- 1 ½ cups shredded mozzarella cheese
- Heat a 10-12” skillet over medium heat and add the oil. Swirl around the pan, then add the sliced onions. Sprinkle the onions with the sugar and toss to coat. Cover and cook 5-10 minutes over medium low, stirring often, until they start to brown, then remove the cover and continue cooking an additional 3-7 minutes, stirring often, until the onions are soft and caramel in color. Remove from pan and set aside to cool.
- Preheat oven to 450°F. Line a cookie sheet with parchment paper. Unroll pizza crust. You can also use a prepared pizza crust (homemade or store-bought), one that makes one 12” pizza, but make it into a rectangle or an oblong rectangle.
- Spread the pesto over the top of the pizza crust. Sprinkle with cheese and spread the cooled caramelized onions over the top.
- Bake for 8-10 minutes, or until the bottom and edges are browned and the cheese is melted and bubbly. Slice and serve warm.
Other Favorite Pizza Recipes
- Click HERE for more PIZZA RECIPES!
- Click here for my ultimate Football Party Menu!
- Pesto Corn and Avocado Pizza
- Sheet Pan Pizza
Our favorite Flatbread pizza recipe – pesto pizza with caramelized onions! This is a great appetizer or main course – easy to make with semi-homemade pizza dough.
Last Updated on January 21, 2023
Tried your pesto and carmelized onion flatbread today for lunch. It was a huge hit. Thanks for sharing your recipe
yessss, I accidentally sent an email today. THE WORST
but THE BEST is any scenario with caramelized onions and carbs. Pesto is a plus.
Love this combination of ingredients. Pinning this to try sometime!
I made this for dinner tonight and it was amazing! I’m thinking I’ll use up the leftover pesto and make your pesto dip (which also looks fantastic). This was the second recipe I’ve made from your blog and they’ve both been great. Can’t wait to try more!
You are not kidding when you say easy. This does look very easy and delicious. Thank you for posting this recipe. I can’t wait to try it out.
Sounds great! For our early morning group I would probably add bacon to it also.
Caramelized onions, and cheese, and yeasty carbs? Yep – I’m in!