In a large skillet, melt 1 tablespoon of butter over medium-high heat.
Add the thinly sliced onion and bell pepper to the skillet. Cook until softened, about 5-7 minutes.
Push the vegetables to one side of the skillet. Add the remaining 1 tablespoon of butter to the empty side. Add the thinly sliced ribeye steak, garlic powder, salt, and pepper.
Cook the steak, stirring occasionally, until browned and cooked through. Mix the steak with the vegetables.
Slice the slider rolls in half horizontally. Top the bottom halves of the rolls with the steak and vegetable mixture.
Sprinkle the shredded Provolone cheese evenly over the mixture.
Place the top halves of the rolls over the cheese. You can optionally brush the tops with melted butter or a little oil.
Serve immediately.
Notes
These sliders are perfect for game day, parties, or a quick and satisfying meal.