June 30, 2026 · 10 min

Caramelized Pineapple and Pickled Onion Flatbreads with BBQ Sauce

Dessert10 min464 cal / serving

Sweet and savory is a combination we can always get behind and these flatbreads deliver on all fronts. A layer of tangy BBQ sauce sets the stage for piles of caramelized onions, quick-pickled red onions, thinly sliced green pepper and juicy, lightly charred pineapple. Melty mozzarella and Monterey Jack cheese provide the ultimate cheese pull, while fresh cilantro adds a bright finish.

Perfect for a quick weeknight dinner or a fun weekend lunch, these flatbreads come together in under an hour. The key is building layers of flavor: the sweetness of the caramelized pineapple and onions balances the tangy pickled onions and smoky BBQ sauce. Serve them hot from the oven for a satisfying meal that feels special but is surprisingly simple to make.


Recipe details

Dessert10 min464 cal / serving2 servings

Nutrition per serving

Calories464 kcalProtein9.5 gFat22 gCarbs55.9 gSugar22 gFiber4 gSodium1029 mg

Dietary labels

Gluten-free: noLactose-free: noDairy-free: no

Allergen check

Gluten / wheat: containsMilk / dairy: containsEgg: not detectedFish: not detectedShellfish: not detectedPeanut: not detectedTree nuts: not detectedSoy: not detectedSesame: containsMustard: not detectedCelery: not detectedSulphites: not detectedLupin: not detectedMolluscs: not detected

Values are calculated per serving from ingredient amounts and the ingredient nutrition reference per 100g. Allergen and diet labels use available ingredient metadata and name matching; always check product labels for strict diets or allergies. Some ingredient amounts or nutrition values were incomplete, so this is marked as a partial estimate.


Ingredients

Red Onion1 unit Red OnionView ingredient guide
Pineapple4 ounce PineappleView ingredient guide
Red Wine Vinegar5 teaspoon Red Wine VinegarView ingredient guide
Long Green Pepper1 unit Long Green PepperView ingredient guide
Fresh Mozzarella4 ounce Fresh MozzarellaView ingredient guide
Cilantro0.25 ounce CilantroView ingredient guide
Flatbreads2 unit FlatbreadsView ingredient guide
BBQ Sauce4 tablespoon BBQ SauceView ingredient guide
Olive Oil1 teaspoon Olive OilView ingredient guide
SaltSaltView ingredient guide
PepperPepperView ingredient guide
Cooking Oil4 teaspoon Cooking OilView ingredient guide

Instructions

  1. Place a foil-lined baking sheet on the top rack (for 4 servings, use 2 foil-lined sheets on top and middle racks) and preheat the oven to 450°F. Wash and dry all produce.
  2. Halve, peel and thinly slice the red onion. Drain the pineapple over a small bowl, reserving the juice. In the bowl with the juice, stir in about a quarter of the sliced onion, half the red wine vinegar and a pinch of salt. Set aside to quick-pickle.
  3. Heat a drizzle of cooking oil in a large pan over medium heat. Add the remaining onion and cook, stirring occasionally and adding splashes of water as needed to prevent sticking, until softened, 6-8 minutes.
  4. While the onion cooks, halve the long green pepper lengthwise, remove the core and seeds and slice very thinly into strips. In a second small bowl, toss the pepper strips with a drizzle of olive oil, salt and pepper. Cut the fresh mozzarella into ½-inch pieces. Finely chop the cilantro.
  5. Once the cooked onion is softened, increase the heat under the pan to medium-high. Add the drained pineapple and a drizzle of cooking oil. Cook, stirring, until the pineapple is lightly browned, 2-3 minutes. Stir in the remaining red wine vinegar and cook until the onion and pineapple are caramelized and jammy, 1-2 minutes more. Turn off the heat and season with salt and pepper.
  6. Brush or rub each flatbread with a drizzle of oil. Carefully remove the prepared baking sheet from the oven and place the flatbreads on the sheet. (For 4 servings, divide flatbreads between the two prepared sheets.) Evenly spread the flatbreads with BBQ sauce, then top with the caramelized onion and pineapple, the seasoned green pepper strips, Monterey Jack cheese and mozzarella pieces.
  7. Return the flatbreads to the top rack (for 4 servings, place one sheet on top rack and one on middle rack; swap positions halfway through baking) and bake until the cheese melts and the edges are golden brown, 10-12 minutes. Transfer the flatbreads to a cutting board, top with chopped cilantro and some of the pickled onion (drained first) to taste. Cut into pieces, divide between plates and serve.

Recipe Tips

For extra caramelization, don’t rush the onion cooking process-low and slow is key.

If you prefer a spicier kick, add a pinch of red pepper flakes to the BBQ sauce.

These flatbreads are best served immediately after baking for maximum crispiness.

FAQ

Can I use a different type of cheese?

Yes, you can substitute the Monterey Jack with another melting cheese like provolone or cheddar, but the mozzarella is key for the cheese pull.

Can I make these flatbreads ahead of time?

They are best enjoyed fresh out of the oven. However, you can prep the toppings (caramelized onion and pineapple, pickled onion, sliced pepper) a day ahead and assemble just before baking.

What can I use instead of flatbreads?

You can use naan, pita bread or even pre-baked pizza crust as a substitute. Adjust baking time as needed.

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