01 -
Heat olive oil in a large skillet over medium heat.
02 -
Add ground beef and cook until browned, breaking it apart with a spoon, about 5–7 minutes.
03 -
Drain excess fat if needed, then add diced onion, green and red bell peppers, and garlic. Cook until vegetables are soft, about 5 minutes.
04 -
Stir in Worcestershire sauce, salt, pepper, and Italian seasoning if using.
05 -
Sprinkle shredded cheese evenly over the beef and vegetable mixture.
06 -
Cover the skillet and reduce heat to low. Let sit for 2–3 minutes until the cheese is melted.
07 -
Serve hot on its own, with toasted bread, or over rice or pasta.