Creating these delicious Philly Cheesesteak Sliders is simple if you follow these steps:

1. Preheat the Oven: Preheat your oven to 350°F (175°C).
2. Sauté the Vegetables: In a large skillet, heat the olive oil over medium heat. Add the sliced onion and bell pepper (if using). Sauté until the vegetables are soft and slightly caramelized, about 5-7 minutes. Remove them from the skillet and set aside.
3. Cook the Steak: In the same skillet, add the thinly sliced ribeye steak. Season with salt, pepper, and Worcestershire sauce. Cook for about 3-4 minutes until the steak is browned and cooked through.
4. Combine Ingredients: Return the sautéed vegetables to the skillet with the cooked steak. Mix until everything is well combined and heated through.
5. Assemble the Sliders: In a baking dish, place the bottom halves of the slider buns. Top with the steak and vegetable mixture, then layer the provolone cheese slices on top.
6. Add the Top Buns: Place the top halves of the buns over the cheese.
7. Brush with Butter: Brush the melted butter over the top of the slider buns for added flavor and a golden finish.
8. Bake: Cover the baking dish with aluminum foil and bake in the preheated oven for about 10-15 minutes. Remove the foil and bake for an additional 5 minutes until the cheese is melted and the buns are golden brown.
9. Serve: Remove from the oven, let cool slightly, then cut the sliders apart and serve warm.

These steps will guide you in creating these incredible sliders effortlessly.