Heat olive oil in a large skillet over medium-high heat.
Add the sliced onions and bell peppers to the skillet and sauté for 5-6 minutes until they are softened and slightly caramelized. Remove them from the skillet and set aside.
In the same skillet, add the ground beef and cook over medium-high heat, breaking it apart with a spatula, until browned and cooked through, about 6-7 minutes.
Add the minced garlic, Worcestershire sauce, salt, black pepper, and smoked paprika to the cooked ground beef. Stir well to combine and cook for another 1-2 minutes.
Return the sautéed onions and peppers to the skillet and mix everything together evenly.
Reduce the heat to low and place the slices of provolone cheese evenly over the beef and vegetable mixture.
Cover the skillet with a lid and cook for 2-3 minutes until the cheese is melted.
Sprinkle chopped fresh parsley over the skillet and serve immediately.