Preheat oven to 300°F. Chop bell peppers and onions and add to a pan greased with 1 Tablespoon oil over medium heat. Sauté until the peppers and onions begin to brown and caramelize, about 10 minutes.
2 medium bell peppers, 1 large onion, 2 tablespoons olive oil
Once browned, remove peppers and onions from the pan and set aside. In the same pan, add your remaining 1 Tablespoon oil, then the shaved ribeye steak. Cook steak until it browns – this should only take a few minutes.
1 pound shaved beef
Once steak has browned, add peppers and onions back into the pan with it. Season with garlic powder, Italian seasoning, red pepper flakes, and salt and pepper to taste. Stir to combine.
1 teaspoon garlic powder, 1 teaspoon Italian seasoning, ¼ teaspoon red pepper flakes, generous pinch salt, generous pinch pepper
Add cheese slices and mix together thoroughly.
12 slices American cheese
Line the cardboard package of Hawaiian rolls with aluminum foil by making a cross shape underneath it using 2 pieces of foil. Halve your Hawaiian slider rolls and spread the bottom half with the filling. Place the bottom half of the rolls back in the original packaging the Hawaiian rolls came in.
Add the top half of the buns back to the sliders. For an even richer taste and crisper finish, brush the tops of the buns with homemade garlic butter. Wrap the package securely in aluminum foil.
2-3 tablespoons garlic butter
Bake at 300°F for 15 minutes. Once done, remove from the oven and carefully unwrap from the foil. Slice into individual sandwiches. Enjoy!