I visited McDonald's in Mong Kok for dinner with my family. We ordered from the black series, which is one of their limited-time products. I had the black pepper beef burger and my wife had the black garlic pork burger. Both sets came with a drink and a side dish. We chose iced lemon tea and corn pie. The black pepper beef burger was tasty, with two slices of beef, cheese, onion, lettuce, and black pepper sauce in a charcoal bun. The beef was tender and flavorful, and the cheese was melted and creamy. The onion added some crunch and sweetness, and the lettuce added some freshness. The black pepper sauce was spicy and tangy, and the charcoal bun was soft and chewy. The black garlic pork burger was also delicious, with a slice of pork, cheese, bacon, lettuce, tomato, and black garlic sauce in a charcoal bun. The pork was moist and meaty, and the cheese was melted and gooey. The bacon added some crispiness and saltiness, and the tomato added some juiciness. The black garlic sauce was sweet and savory, and the charcoal bun was soft and chewy. The corn pie was crispy and sweet, with corn kernels and custard in a pastry shell. The iced lemon tea was refreshing and sour. We liked our dinner and felt happy. The food quality was good and the price was fair. I would recommend this restaurant to anyone who wants to try something different.