01 -
Slice onion and bell pepper as thinly as possible. Slice brisket across the grain to maximize tenderness.
02 -
Heat olive oil in a large skillet over medium heat. Add sliced onions and bell peppers. Cook, stirring often, for about 7 minutes until soft, caramelised, and golden. Season with salt and pepper. Transfer to a plate.
03 -
Using the same skillet, spread brisket slices evenly in a single layer. Warm through for 2–3 minutes, just until heated and juicy.
04 -
Slice hoagie rolls open without cutting all the way through. Generously spread mayonnaise on both inner sides. If desired, add Dijon mustard and a few drops of hot sauce.
05 -
Pile warm brisket evenly into each roll. Top with sautéed onions and peppers. Place 2 slices of provolone cheese on each sandwich.
06 -
Return assembled sandwiches to the skillet or place on a hot griddle. Cover with a lid and heat for about 4 minutes, until the bread is lightly toasted and cheese is melted.
07 -
Transfer sandwiches carefully with a spatula and serve immediately while the cheese is melting and the bread crisp.