Mellow Mushroom is a 40-year old pizza chain. The personality mimics much of the hippy culture from the 1960s and 1970s. This actually means they have been relatively vegan friendly. I was pleasantly surprised on a recent visit to find a new gluten free AND vegan pizza crust option. Even clearly marked on the menu as such. Very exciting and quite tasty! I was starving and ate my entire pizza. This place gets an easy four out of five vegan cupcakes. Easily vegan, tasty, and I will certainly return.