Turn a simple sheet of puff pastry into an impressive appetiser with these Cheesy Pesto Puff Squares. Layered with sun-dried tomato pesto and gooey mozzarella, then sprinkled with sesame seeds, they bake into golden little bites of savoury perfection. Whether you’re hosting a party, looking for a quick snack, or want something easy yet impressive to put on the table, these squares deliver on flavour, crunch, and crowd-pleasing appeal.
Best of all, they’re quick to make — ready in under 30 minutes — with only a handful of ingredients.
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This recipe proves that with just a few pantry staples, you can create something irresistible. Here’s what makes these puff squares so delicious:
With so few ingredients, the quality really shines. Store-bought puff pastry is a lifesaver here, and sun-dried tomato pesto adds instant gourmet flair without the effort of making it from scratch.
These little bites look impressive, but they couldn’t be easier to put together. Here’s a step-by-step guide:
Start by rolling out your sheet of puff pastry into a neat rectangle. Cut it in half lengthwise so you have two equal pieces. Spread sun-dried tomato pesto evenly across one half, then place the second half on top to make a pastry “sandwich.”

Sprinkle the grated mozzarella evenly over the top and cut the pastry in half along the long side to create two smaller rectangles. Place one half on top of the other, cheese side up, to create a layered puff pastry,

then slice into even squares. A pizza cutter or sharp knife works best to get clean edges.

Arrange the squares on a baking tray, sprinkle with sesame seeds, and bake at 200°C (400°F) for 12–15 minutes. They’ll puff beautifully, turning golden brown with a cheesy, slightly crisped top.

Allow them to cool for just a couple of minutes (if you can resist!) and then serve warm. They’re the kind of snack that disappears fast — so you might want to double the batch.

Cheesy Pesto Puff Squares are as versatile as they are delicious. They’re:
Because they’re bite-sized and easy to pick up, these squares are made for sharing. You’ll find they vanish almost as soon as you set them down.
Want to switch things up? Here are a few easy twists:
And here’s a pro tip: if you’re entertaining, make a double batch. They’re guaranteed to go quickly.
One of the best things about this recipe is how make-ahead friendly it is.
This is the kind of recipe that becomes a staple — once you make it once, you’ll find yourself coming back to it again and again for gatherings, snacks, or just when you want something cheesy and satisfying in a hurry.
Want to see these puff squares come to life? Watch our quick step-by-step video tutorial on Instagram and don’t miss out on our other puff pastry favourites.
Craving more cheesy inspiration? Try these next:
Happy baking,
Izabella
These Cheesy Pesto Puff Squares are the ultimate quick snack or party treat. Flaky puff pastry is layered with rich sun-dried tomato pesto and gooey mozzarella, then baked until golden and puffed. Finished with a sprinkle of sesame seeds, they’re crispy on the outside, soft and cheesy on the inside, and perfect for sharing or enjoying straight from the oven. Simple to assemble yet impressive enough to serve to guests, these squares are guaranteed to disappear fast!