Leave it to a first-rate burger spot to put out a prime vegetarian sandwich. Steve Gontram, who ran the acclaimed restaurant Harvest for many years, took a year off from his role as chef, and then decided he wanted to do burgers. 5 Star Burgers is the result, and it's a tribute to his efforts that the portabella stack sandwich is as satisfying as even a dedicated carnivore could want. A butter-toasted bun holds one large sautéed portabella mushroom cap - or several smaller ones. They're topped with caramelized onions and roasted sweet red pepper. And somehow, they manage to get a goodly amount of gorgonzola cheese in there, as well. It's a wonderfully messy sandwich, but worth it. Also worth noting: There’s a generous pour on their classic cocktails (sometimes served with music from The Great American Songbook) and fine lamb and pork burgers, as well as the variety of beef-based ones.