Fast-food chain Taco Bell is promoting a “How to Eat Veggie” guide to its nearly two million Twitter followers. The eatery created a vegetarian menu—the first fast-food chain to receive American Vegetarian Association approval—earlier this year due to rising customer demand. In its guide, the company pointed out meat-free options to make it even easier for customers to order. “Taco Bell sells 350 million vegetarian items a year,” the company says, “and about seven percent of all items ordered at Taco Bell are either vegetarian-friendly or made vegetarian-friendly by substitution or removal.” Taco Bell is among several chain restaurants looking to increase their popularity with the growing vegetarian and vegan demographic. Subway introduced vegan protein patties last year, while Wendy’s began testing a new veggie burger at select locations nationwide.