P. Terry's serves "all-natural" beef, but it is not grass-fed. If you want a grass-fed burger in Austin, try Wholly Cow (which is quite a bit more expensive tha

P. Terry's serves "all-natural" beef, but it is not grass-fed. If you want a grass-fed burger in Austin, try Wholly Cow (which is quite a bit more expensive than McDonald's, as you would expect).