Preheat the oven to 350℉. Line a small, rimmed baking sheet with parchment paper.
PREPARE THE STEAK:
Heat 1 tablespoon of oil in a large skillet. Add the steak and sauté until browned and cooked through. Drain the fat and discard. Season with garlic salt and freshly ground black pepper.
COOK THE VEGGIES:
In a separate skillet, heat another tablespoon of oil and sauté the peppers and onions until they are softened.
ASSEMBLE THE SLIDERS:
Place the bottom halves of the slider buns on the baking sheet. Top with the cooked steak. Top the steak with the sautéed veggies. Place cheese on top of the veggies. Place the top buns on top. Wrap with foil and bake 10 minutes. Remove the foil and bake for another 10 minutes. Eat!
Notes
If you love having a lot of cheese on your sliders, place cheese on the bottom buns before you add the meat to the buns.