What type of dishes does Panda Express classify as "signature"?

Panda Express classifies dishes such as mushroom chicken, black pepper chicken, Kung Pao chicken, and orange chicken as "signature" items because these dishes are iconic representations of the brand and are favorites among customers. "Signature" dishes often highlight the unique flavors and cooking techniques that Panda Express is known for, reflecting a blend of American Chinese cuisine that has become synonymous with the brand.

While other options include popular menu items, they do not capture the essence of what a "signature" dish represents for Panda Express in terms of brand identity and customer preference. Signature dishes typically feature bold flavors, a variety of textures, and accessible ingredients that resonate well with a wide audience, which is why the selected answer includes some of the most well-known items on their menu.