Let’s get cooking with these step-by-step instructions:

1. Preheat your oven to 350°F.
2. Heat olive oil in a large skillet over medium heat. Add the sliced beef, salt, and pepper, cooking until browned, about 5 minutes. Set aside.
3. In the same skillet, add the onions and bell peppers, sautéing until soft and caramelized, about 8 minutes.
4. Slice the slider rolls in half, placing the bottoms on a baking sheet lined with parchment paper.
5. Spread a thin layer of mayonnaise on each roll bottom.
6. Layer the cooked beef evenly across the rolls, followed by the onion and pepper mixture.
7. Top with slices of provolone cheese, ensuring each roll gets its cheesy goodness.
8. Place the roll tops on each slider and brush with melted butter mixed with garlic powder.
9. Bake in the oven for 10-12 minutes, or until the cheese is melted and the tops are golden brown.

My tip? Keep an eye on the cheese melt. There’s something so satisfying about pulling them out just as the cheese bubbles over the sides.