Instructions:
- Preheat the oven to 350 degrees Fahrenheit. Using cooking spray, coat a baking pan and layer it with aluminum foil.
- To separate the top and bottom of the rolls, cut them in half horizontally, keeping them together as one slab.
- Separate the rolls into individual rolls as little as possible.
- On the baking sheet, place the bottom half.In a skillet, heat 1 tablespoon olive oil.
- Season the steak with salt and pepper and cook it in a skillet over medium heat until it is cooked through.
- Remove it from the skillet and set it on top of the bottom slab of rolls.
- Set aside around 10 pieces of your sliced onion. Heat the remaining 1 tablespoon olive oil in the same skillet and sauté the green pepper and remaining onion until tender.
- On top of the steak, arrange the green pepper and onion. 8 pieces provolone cheese on top of everything On top of that, place the other half of the rolls.
- Melt the butter and beef stock concentrate together.
- To blend, stir everything together.
- Apply the mixture to the tops of the rolls. Reserve the onion pieces and finely dice them to add on top of the rolls.
- In a preheated oven, bake for 10 minutes, or until the cheese has melted and the tops have begun to brown.
- If necessary, cover the rolls with aluminum foil to prevent them from browning too much.
- Heat the sliders and slice them into individual sliders to serve.