Start by cutting your top sirloin steak into 1-inch cubes.
In a mixing bowl, combine the olive oil, minced garlic, Worcestershire sauce, salt, black pepper, smoked paprika, and red pepper flakes. Add the steak cubes and toss until well coated. Let marinate for at least 10 minutes.
Preheat your air fryer to 400°F (200°C).
Arrange the marinated steak bites in a single layer in the air fryer basket. Cook for 8-10 minutes, shaking halfway through.
Once cooked, remove from air fryer and let rest. Garnish with chopped parsley and red pepper flakes if desired. Serve immediately.
