Ingredients:
1 lb thinly sliced steak (such as sirloin or ribeye)
1 tablespoon olive oil
1 bell pepper, thinly sliced
1 onion, thinly sliced
Salt and black pepper to taste
4 large flour tortillas
2 cups shredded mozzarella cheese
Optional: sliced mushrooms, jalapeños, or avocado for topping
Optional: salsa, sour cream, or guacamole for serving
