01 -
Allow the frozen bread dough to thaw and rise according to package instructions until doubled in size.
02 -
Dice the green bell pepper and onion, and thinly slice the mushrooms. Heat 14 g butter in a skillet over medium heat; add vegetables and sauté until softened and lightly caramelized, about 5–7 minutes. Set aside to cool slightly.
03 -
Preheat oven to 190°C. Line a baking sheet with parchment paper or coat with non-stick spray.
04 -
On a lightly floured surface, roll the risen dough into a rectangle approximately 30 x 45 cm. Ensure the dough is thin but sturdy.
05 -
Mix the mayonnaise and garlic powder in a small bowl. Evenly spread the mixture over the dough, leaving a 1.5 cm border on all sides.
06 -
Layer the roast beef slices over the mayonnaise-covered dough. Distribute sautéed vegetables evenly, then top with provolone cheese slices.
07 -
Starting from a long side, tightly roll the dough jelly-roll style, tucking in fillings and folding edges if needed. Pinch seams and ends to seal.
08 -
Place the rolled stromboli, seam-side down, on the prepared baking sheet. Melt the remaining 14 g butter and brush over the surface. Sprinkle with garlic salt, sesame seeds, and dried parsley.
09 -
Bake for 15–20 minutes or until golden brown and heated through. Ensure an internal temperature of at least 74°C for food safety.
10 -
Allow the stromboli to rest for 5 minutes after baking. Slice into portions using a serrated knife and serve warm.