3teaspoonsconcentrated beef stockI like Better than bouillon
Instructions
Preheat the oven to 350 degrees and prepare a 9x13 inch baking dish with cooking spray. Set aside.
Use a bread knife to slice the Hawaiian rolls in half horizontally, leaving them attached.
Place the bottom half of the rolls in the prepared pan and top with the shaved roast beef. Set aside.
Heat the oil in a large skillet over medium heat and cook the onions and green peppers until transparent and tender. (About 5 minutes)
Transfer the peppers and onions to the baking dish, distributing evenly over the roast beef.
Place the provolone cheese over the peppers, overlapping slightly then place the top half of the rolls over the cheese.
In a small bowl, mix together the unsalted butter and beef stock concentrate until dissolved.
Brush the seasoned butter over the top of the rolls until all the butter is used.
Bake in the preheated oven for 20 minutes or until the tops of the sliders are golden brown and the cheese is melted throughout.
Notes
If the tops of the rolls are browning too fast, you can loosely tent the dish with foil so that the browning slows but the cheese can still melt.
Store leftovers in the fridge in an airtight container for up to 3 days. Note that the rolls will get a little soft in the fridge. To reheat, it’s best to reheat in a 300 degrees F oven, covered with foil, for 10-15 minutes until warmed.