July 3, 2026 · 5 min

Smoky Mustard Chicken Flatbreads with Gouda and Caramelized Onion

Lunch5 min1914 cal / serving

These smoky mustard chicken flatbreads are a perfect weeknight dinner that comes together in under 30 minutes. Crispy flatbreads are topped with a tangy smoky mustard sauce, tender seasoned chicken, sweet caramelized onions and a blend of melted smoked Gouda and mozzarella cheese. Fresh scallion greens add a bright finish, making every bite a balance of savory, smoky and cheesy goodness.

This recipe is easy to customize-add your favorite hot sauce or chili flakes for extra heat. Serve as a main dish or cut into smaller pieces for a crowd-pleasing appetizer.


Recipe details

Lunch5 min1914 cal / serving2 servings

Nutrition per serving

Calories1914 kcalProtein58.6 gFat177.1 gCarbs25.5 gSugar6.2 gFiber3.4 gSodium1211 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: containsCelery: 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

Fry Seasoning1 tablespoon Fry SeasoningView ingredient guide
Onion1 unit OnionView ingredient guide
Flatbreads2 unit FlatbreadsView ingredient guide
Smoked Gouda Cheese1 cup Smoked Gouda CheeseView ingredient guide
Smoky Mustard2 ounce Smoky MustardView ingredient guide
Mozzarella Cheese0.5 cup Mozzarella CheeseView ingredient guide
Scallions2 unit ScallionsView ingredient guide
Saltteaspoon (tsp) SaltView ingredient guide
Olive Oil2 teaspoon (tsp) Olive OilView ingredient guide
Cooking Oil1 teaspoon (tsp) Cooking OilView ingredient guide
Black Pepperteaspoon (tsp) Black PepperView ingredient guide

Instructions

  1. Adjust rack to top position and preheat oven to 450°F. Wash and dry produce. Halve, peel and thinly slice onion. Trim and thinly slice scallions, separating whites from greens.
  2. Open package of chicken and drain off any excess liquid. Heat a drizzle of oil in a large pan over medium-high heat. Add chicken; season with Fry Seasoning, salt and pepper. Cook, stirring occasionally, until beginning to brown, 2-4 minutes. Add onion and scallion whites; cook, stirring occasionally, until onion has softened and chicken is cooked through, 2-4 minutes more. Season with salt and pepper.
  3. Meanwhile, place flatbreads, dimpled sides down, on a baking sheet. Brush or rub each flatbread with a drizzle of olive oil; lightly season with salt and pepper. Toast on top rack until golden brown, 3-5 minutes. Once toasted, remove sheet from oven. Carefully flip flatbreads so dimpled sides are up; spread evenly with smoky mustard. Sprinkle with smoked Gouda and mozzarella. Top with chicken mixture. Return to top rack; bake until cheese melts and flatbreads are crispy, 3-4 minutes.
  4. Garnish flatbreads with scallion greens. Slice into pieces as desired. Divide between plates and serve. Tip: Finish with your favorite hot sauce or chili flakes for extra heat.

Recipe Tips

For extra heat, finish with hot sauce or chili flakes. If making 4 servings, use two baking sheets and swap rack positions halfway through toasting and baking.

FAQ

Can I use a different cheese?

Yes, you can substitute smoked Gouda with another smoked cheese like provolone or cheddar and mozzarella with any melting cheese.

Can I make this ahead?

The flatbreads are best enjoyed fresh, but you can prep the chicken and onion mixture ahead and assemble just before baking.

What if I don't have fry seasoning?

You can use a blend of paprika, garlic powder, onion powder, salt and pepper as a substitute.

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