Costco has a surprisingly large selection of vegan foods. Here are some of the best options. (COST)

Business Insider/Jessica Tyler Costco is a surprisingly great place to shop if you're vegan. Veganism is becoming increasingly popular, with the plant-based food industry currently generating over $13 billion in annual sales. Because of the growing demand, many retailers are adding more options, like Costco's al pastor salad,which replaced the Polish hot dogon food-court menus this summer. Even if products aren't specifically labeled as vegan, many of them are if you read the ingredients. Costco...