The 21 best vegan and vegetarian menu items from America's biggest fast-food chains, from Taco Bell to McDonald's

Business Insider/Jessica Tyler

Taco Bell has some great vegan fast-food menu items.

• Taco Bell, Starbucks, McDonald's, and other fast-food chains are adding more vegan and vegetarian options to the menu.
• Here are the best vegan and vegetarian menu items to get at major fast-food chains across the United States.
• Visit BusinessInsider.com for more stories.

Americans are hungry for vegetarian fast food.

Taco Bell is testing a 100% vegetarian menu. Burger King is serving a plant-based Impossible Whopper at more than 50 stores. And Chipotle recently added vegetarian and vegan items to its menu.

Read more: Fast-food customers are desperately seeking vegetarian and vegan options - here are the chains they're searching for the most

As people search for vegetarian fast-food options, it's hard to tell a delicious meat-free dish from a dud.

Here's the best vegetarian fast-food menu items at some of the most popular chains, including Taco Bell, McDonald's, Starbucks, and more.