June 29, 2026 · 10 min

Sweet and Savory BBQ Pineapple Flatbreads with Caramelized Onions

Dessert10 min463 cal / serving

Sweet and savory is a combination that always hits the spot, whether for dinner, dessert or even a snack. These flatbreads bring together tangy-sweet BBQ sauce, piles of caramelized and pickled onions, green pepper and juicy, lightly charred pineapple. And of course, we didn’t forget the cheese-melty mozzarella and Monterey Jack create the ultimate cheese pull.

Once you take a bite, your taste buds will light up from the perfect balance of savory, sweet and cheesy flavors. This recipe is easy to make and perfect for a weeknight meal or a casual gathering.


Recipe details

Dessert10 min463 cal / serving2 servings

Nutrition per serving

Calories463 kcalProtein9.4 gFat22 gCarbs55.8 gSugar21.9 gFiber3.9 gSodium1027 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
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. Preheat the oven to 450°F. Line a baking sheet with foil (for 4 servings, use two sheets on top and middle racks). Wash and dry all produce. Halve, peel and thinly slice the red onion. Drain the pineapple over a small bowl, reserving the juice. Stir 1/4 of the sliced onion, half the red wine vinegar and a pinch of salt into the bowl with the pineapple juice. Set aside to quick-pickle.
  2. Heat a drizzle of cooking oil in a large pan over medium heat. Add the remaining sliced onion and cook, stirring occasionally and adding splashes of water as needed to prevent sticking, until softened, about 6-8 minutes.
  3. While the onion cooks, halve the long green pepper lengthwise, remove the core and seeds and slice into very thin strips. In a small bowl, toss the pepper strips with a drizzle of olive oil, salt and pepper. Dice the fresh mozzarella into 1/2-inch pieces.
  4. Once the onion is softened, increase the heat 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. Remove from heat and season with salt and pepper.
  5. Brush or rub each flatbread with a drizzle of oil. Remove the preheated baking sheet from the oven and carefully place the flatbreads on it (for 4 servings, divide flatbreads between both sheets). Spread the flatbreads evenly with BBQ sauce, then top with the caramelized onion and pineapple mixture, the seasoned green pepper strips, Monterey Jack cheese and diced mozzarella.
  6. Return the flatbreads to the oven and bake until the cheese is melted and the edges are golden brown, 10-12 minutes (for 4 servings, bake on top and middle racks, swapping positions halfway through). Transfer the flatbreads to a cutting board, top with the drained pickled onion to taste, slice into quarters and serve.

Recipe Tips

For extra flavor, use a smoky or spicy BBQ sauce.

If you prefer a crispier flatbread, bake directly on the oven rack instead of a baking sheet.

FAQ

Can I use a different type of onion?

Yes, you can substitute red onion with yellow or white onion, though the flavor will be slightly milder.

Can I make these flatbreads ahead of time?

These flatbreads are best enjoyed fresh out of the oven. However, you can prepare the toppings in advance and assemble just before baking.

What can I use instead of flatbreads?

You can use naan, pita bread or even pizza dough as a substitute.

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