I couldn't find any relevant information about a "restaurant" named Petco. However, I found information about Petco as a pet supply retail store chain.
Petco is a well-known retailer of pet food, supplies, and services. They offer a wide range of products for dogs, cats, birds, small mammals, reptiles, amphibians, and fish. Their stores typically have a variety of sections, including pet food, toys, grooming supplies, and accessories.
It appears that Petco is not primarily a restaurant but rather a retail destination for pet owners to find everything they need to care for their pets.
