Step 1: Prepare the Steak

1. Thinly slice the ribeye steak against the grain for maximum tenderness.
2. Season the steak with garlic powder, smoked paprika, salt, and pepper. Set aside.

Step 2: Sauté the Vegetables

1. Heat 1 tbsp olive oil in a large skillet over medium heat.
2. Add the sliced onions and bell peppers (and jalapeño if using).
3. Sauté for 5-7 minutes until the vegetables are soft and slightly caramelized. Remove and set aside.

Step 3: Cook the Steak

1. In the same skillet, add the remaining 1 tbsp olive oil.
2. Add the seasoned steak slices and cook for 3-4 minutes until browned.
3. If using Worcestershire sauce, drizzle it over the steak during the last minute of cooking.

Step 4: Assemble the Quesadilla

1. Place a tortilla on a clean surface.
2. Sprinkle half of the shredded cheese evenly over the tortilla.
3. Add a layer of cooked steak and sautéed vegetables.
4. Top with the remaining cheese and place the second tortilla on top.

Step 5: Cook the Quesadilla

1. Heat the skillet over medium heat.
2. Carefully transfer the assembled quesadilla to the skillet.
3. Cook for 2-3 minutes on each side until the tortilla is golden brown and the cheese is melted.
4. Use a spatula to flip the quesadilla gently.