What is the primary cooking vessel used in Panda Express kitchens for stir-frying?

The primary cooking vessel used in Panda Express kitchens for stir-frying is the wok. This is because the wok is specially designed for high-heat cooking and allows for quick, even cooking of ingredients. Its rounded shape and high sides facilitate easy tossing and stirring of food, which is essential in stir-fry methods to ensure that everything cooks uniformly while retaining their flavors and textures. The wok also accommodates a wide variety of ingredients, making it ideal for the diverse menu offered by Panda Express. This cooking tool not only enhances flavor but also supports the rapid cooking technique that is characteristic of Asian cuisine, ensuring that vegetables remain crisp and meats are seared properly.