In a large skillet, heat the olive oil over medium-high heat. Add the sliced onions and green bell peppers, cooking until they are softened, about 5 minutes.
Add the ribeye steak to the skillet, seasoning with garlic powder, salt, and pepper. Cook until the steak is browned and cooked through, about 3-4 minutes.
Reduce the heat to low and stir in the cream cheese, provolone cheese, mozzarella cheese, and Worcestershire sauce. Mix until the cheeses are melted and the mixture is creamy.
Remove the skillet from heat and let the mixture cool slightly.
Lay a low-carb tortilla flat on a clean surface. Spoon about 1/4 cup of the cheesesteak mixture onto the center of the tortilla. Roll it up tightly, tucking in the sides as you go. Repeat with the remaining tortillas and filling.
Preheat your oven to 375°F. Place the rolled tortillas seam-side down on a baking sheet lined with parchment paper.
Bake for 15-20 minutes, or until the tortillas are golden brown and crispy.
Allow to cool for a few minutes before slicing into bite-sized pieces. Serve warm.