Pin this for your next cook out type party! Sparrow Tavern’s Veggie Burger, from Diner's Drive Ins and Dives. A bit of work but they are SO worth it! Even my carnivore son loved them, asked if he could make one later in the night, then wandered into my bedroom in the a.m. and said he was making Veggie Burgers, did I want one! The Sweet Cayenne Mustard sauce, alone, is to die for! Serve with my Crispy Stupid Simple Sweet Potato Fries!!