Preheat oven to 400°. In a skillet, cook beef and onion in oil until meat is no longer pink; drain. Stir in the Worcestershire sauce, garlic salt, Italian seasoning, rice, soup and water. , Place cooked broccoli in an 11x7-in. baking dish; spoon meat mixture over top. Sprinkle with mozzarella cheese. Bake, uncovered, until heated through, 15-20 minutes. Garnish with parsley if desired.