Let cool slightly, slice, and garnish with fresh parsley.
Tips & Variations:
Swap mozzarella for cheddar or Gruyère for a different flavor profile.
Add finely chopped spinach or bell peppers to the beef mixture for extra nutrition.
Serve with a side of marinara or garlic aioli for dipping.
Prep Time: 15 minutes | Cooking Time: 30 minutes | Total Time: 45 minutes
Calories: ~380 kcal per serving
